--- a/content/html/content/public/nsHTMLMediaElement.h
+++ b/content/html/content/public/nsHTMLMediaElement.h
@@ -205,28 +205,16 @@ protected:
 
   // Value of the volume before it was muted
   float mMutedVolume;
 
   // Size of the media. Updated by the decoder on the main thread if
   // it changes. Defaults to a width and height of -1 if not set.
   nsIntSize mMediaSize;
 
-  // The defaultPlaybackRate attribute gives the desired speed at
-  // which the media resource is to play, as a multiple of its
-  // intrinsic speed.
-  float mDefaultPlaybackRate;
-
-  // The playbackRate attribute gives the speed at which the media
-  // resource plays, as a multiple of its intrinsic speed. If it is
-  // not equal to the defaultPlaybackRate, then the implication is
-  // that the user is using a feature such as fast forward or slow
-  // motion playback.
-  float mPlaybackRate;
-
   // If true then we have begun downloading the media content.
   // Set to false when completed, or not yet started.
   PRPackedBool mBegun;
 
   // If truen then the video playback has completed.
   PRPackedBool mEnded;
 
   // True when the decoder has loaded enough data to display the

--- a/content/html/content/src/nsHTMLMediaElement.cpp
+++ b/content/html/content/src/nsHTMLMediaElement.cpp
@@ -95,20 +95,16 @@ public:
       mElement->DispatchSimpleEvent(mName);
   }
 };
 
 // nsIDOMHTMLMediaElement
 NS_IMPL_URI_ATTR(nsHTMLMediaElement, Src, src)
 NS_IMPL_BOOL_ATTR(nsHTMLMediaElement, Controls, controls)
 NS_IMPL_BOOL_ATTR(nsHTMLMediaElement, Autoplay, autoplay)
-NS_IMPL_FLOAT_ATTR(nsHTMLMediaElement, Start, start)
-NS_IMPL_FLOAT_ATTR(nsHTMLMediaElement, End, end)
-NS_IMPL_FLOAT_ATTR(nsHTMLMediaElement, LoopStart, loopstart)
-NS_IMPL_FLOAT_ATTR(nsHTMLMediaElement, LoopEnd, loopend)
 
 /* readonly attribute nsIDOMHTMLMediaError error; */
 NS_IMETHODIMP nsHTMLMediaElement::GetError(nsIDOMHTMLMediaError * *aError)
 {
   NS_IF_ADDREF(*aError = mError);
 
   return NS_OK;
 }
@@ -116,17 +112,16 @@ NS_IMETHODIMP nsHTMLMediaElement::GetErr
 /* readonly attribute boolean ended; */
 NS_IMETHODIMP nsHTMLMediaElement::GetEnded(PRBool *aEnded)
 {
   *aEnded = mEnded;
 
   return NS_OK;
 }
 
-
 /* readonly attribute DOMString currentSrc; */
 NS_IMETHODIMP nsHTMLMediaElement::GetCurrentSrc(nsAString & aCurrentSrc)
 {
   nsCAutoString src;
   
   if (mDecoder) {
     nsCOMPtr<nsIURI> uri;
     mDecoder->GetCurrentURI(getter_AddRefs(uri));
@@ -135,90 +130,24 @@ NS_IMETHODIMP nsHTMLMediaElement::GetCur
     }
   }
 
   aCurrentSrc = NS_ConvertUTF8toUTF16(src);
 
   return NS_OK;
 }
 
-/* attribute float defaultPlaybackRate; */
-NS_IMETHODIMP nsHTMLMediaElement::GetDefaultPlaybackRate(float *aDefaultPlaybackRate)
-{
-  *aDefaultPlaybackRate = mDefaultPlaybackRate;
-  return NS_OK;
-}
-
-NS_IMETHODIMP nsHTMLMediaElement::SetDefaultPlaybackRate(float aDefaultPlaybackRate)
-{
-  if (aDefaultPlaybackRate == 0.0) {
-    return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
-  }
-
-  mDefaultPlaybackRate = aDefaultPlaybackRate;
-  DispatchAsyncSimpleEvent(NS_LITERAL_STRING("ratechange"));
-
-  return NS_OK;
-}
-
-/* attribute float playbackRate; */
-NS_IMETHODIMP nsHTMLMediaElement::GetPlaybackRate(float *aPlaybackRate)
-{
-  *aPlaybackRate = mPlaybackRate;
-  return NS_OK;
-}
-
-NS_IMETHODIMP nsHTMLMediaElement::SetPlaybackRate(float aPlaybackRate)
-{
-  if (aPlaybackRate == 0.0) {
-    return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
-  }
-
-  mPlaybackRate = aPlaybackRate;
-
-  if (mDecoder) {
-    mDecoder->PlaybackRateChanged();
-  }
-
-  DispatchAsyncSimpleEvent(NS_LITERAL_STRING("ratechange"));
-  return NS_OK;
-}
-
 /* readonly attribute unsigned short networkState; */
 NS_IMETHODIMP nsHTMLMediaElement::GetNetworkState(PRUint16 *aNetworkState)
 {
   *aNetworkState = mNetworkState;
 
   return NS_OK;
 }
 
-/* readonly attribute float bufferingRate; */
-NS_IMETHODIMP nsHTMLMediaElement::GetBufferingRate(float *aBufferingRate)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
-/* readonly attribute boolean bufferingThrottled; */
-NS_IMETHODIMP nsHTMLMediaElement::GetBufferingThrottled(PRBool *aBufferingRate)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
-/* readonly attribute nsIDOMTimeRanges buffered; */
-NS_IMETHODIMP nsHTMLMediaElement::GetBuffered(nsIDOMHTMLTimeRanges * *aBuffered)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
-/* readonly attribute nsIDOMByteRanges bufferedBytes; */
-NS_IMETHODIMP nsHTMLMediaElement::GetBufferedBytes(nsIDOMHTMLByteRanges * *aBufferedBytes)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
 /* readonly attribute unsigned long totalBytes; */
 NS_IMETHODIMP nsHTMLMediaElement::GetTotalBytes(PRUint32 *aTotalBytes)
 {
   *aTotalBytes = mDecoder ? PRUint32(mDecoder->GetTotalBytes()) : 0;
   return NS_OK;
 }
 
 /* void load (); */
@@ -244,19 +173,17 @@ nsresult nsHTMLMediaElement::LoadWithCha
     DispatchProgressEvent(NS_LITERAL_STRING("abort"));
     return NS_OK;
   }
 
   mError = nsnull;
   mLoadedFirstFrame = PR_FALSE;
   mAutoplaying = PR_TRUE;
 
-  float rate = 1.0;
-  GetDefaultPlaybackRate(&rate);
-  SetPlaybackRate(rate);
+  // TODO: The playback rate must be set to the default playback rate.
 
   if (mNetworkState != nsIDOMHTMLMediaElement::EMPTY) {
     mNetworkState = nsIDOMHTMLMediaElement::EMPTY;
     ChangeReadyState(nsIDOMHTMLMediaElement::DATA_UNAVAILABLE);
     mPaused = PR_TRUE;
     // TODO: The current playback position must be set to 0.
     // TODO: The currentLoop DOM attribute must be set to 0.
     DispatchSimpleEvent(NS_LITERAL_STRING("emptied"));
@@ -330,28 +257,16 @@ NS_IMETHODIMP nsHTMLMediaElement::GetDur
 /* readonly attribute boolean paused; */
 NS_IMETHODIMP nsHTMLMediaElement::GetPaused(PRBool *aPaused)
 {
   *aPaused = mPaused;
 
   return NS_OK;
 }
 
-/* readonly attribute nsIDOMHTMLTimeRanges played; */
-NS_IMETHODIMP nsHTMLMediaElement::GetPlayed(nsIDOMHTMLTimeRanges * *aPlayed)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
-/* readonly attribute nsIDOMHTMLTimeRanges seekable; */
-NS_IMETHODIMP nsHTMLMediaElement::GetSeekable(nsIDOMHTMLTimeRanges * *aSeekable)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
 /* void pause (); */
 NS_IMETHODIMP nsHTMLMediaElement::Pause()
 {
   if (!mDecoder) 
     return NS_OK;
 
   nsresult rv;
 
@@ -368,50 +283,16 @@ NS_IMETHODIMP nsHTMLMediaElement::Pause(
   if (!oldPaused) {
     DispatchAsyncSimpleEvent(NS_LITERAL_STRING("timeupdate"));
     DispatchAsyncSimpleEvent(NS_LITERAL_STRING("pause"));
   }
 
   return NS_OK;
 }
 
-/* attribute unsigned long playCount; */
-NS_IMETHODIMP nsHTMLMediaElement::GetPlayCount(PRUint32 *aPlayCount)
-{
-  return GetIntAttr(nsGkAtoms::playcount, 1, reinterpret_cast<PRInt32*>(aPlayCount));
-}
-
-NS_IMETHODIMP nsHTMLMediaElement::SetPlayCount(PRUint32 aPlayCount)
-{
-  return SetIntAttr(nsGkAtoms::playcount, static_cast<PRInt32>(aPlayCount));
-}
-
-/* attribute unsigned long currentLoop; */
-NS_IMETHODIMP nsHTMLMediaElement::GetCurrentLoop(PRUint32 *aCurrentLoop)
-{
-  return GetIntAttr(nsGkAtoms::currentloop, 0, reinterpret_cast<PRInt32*>(aCurrentLoop));
-}
-
-NS_IMETHODIMP nsHTMLMediaElement::SetCurrentLoop(PRUint32 aCurrentLoop)
-{
-  return SetIntAttr(nsGkAtoms::currentloop, static_cast<PRInt32>(aCurrentLoop));
-}
-
-/* void addCueRange (in DOMString className, in float start, in float end, in boolean pauseOnExit, in nsIDOMHTMLVoidCallback enterCallback, in nsIDOMHTMLVoidCallback exitCallback); */
-NS_IMETHODIMP nsHTMLMediaElement::AddCueRange(const nsAString & className, float start, float end, PRBool pauseOnExit, nsIDOMHTMLVoidCallback *enterCallback, nsIDOMHTMLVoidCallback *exitCallback)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
-/* void removeCueRanges (in DOMString className); */
-NS_IMETHODIMP nsHTMLMediaElement::RemoveCueRanges(const nsAString & className)
-{
-    return NS_ERROR_NOT_IMPLEMENTED;
-}
-
 /* attribute float volume; */
 NS_IMETHODIMP nsHTMLMediaElement::GetVolume(float *aVolume)
 {
   if (mMuted)
     *aVolume = mMutedVolume;
   else
     *aVolume = mDecoder ? mDecoder->GetVolume() : 0.0;
   return NS_OK;
@@ -463,18 +344,16 @@ NS_IMETHODIMP nsHTMLMediaElement::SetMut
 }
 
 nsHTMLMediaElement::nsHTMLMediaElement(nsINodeInfo *aNodeInfo, PRBool aFromParser)
   : nsGenericHTMLElement(aNodeInfo),
     mNetworkState(nsIDOMHTMLMediaElement::EMPTY),
     mReadyState(nsIDOMHTMLMediaElement::DATA_UNAVAILABLE),
     mMutedVolume(0.0),
     mMediaSize(-1,-1),
-    mDefaultPlaybackRate(1.0),
-    mPlaybackRate(1.0),
     mBegun(PR_FALSE),
     mEnded(PR_FALSE),
     mLoadedFirstFrame(PR_FALSE),
     mAutoplaying(PR_TRUE),
     mPaused(PR_TRUE),
     mMuted(PR_FALSE),
     mIsDoneAddingChildren(!aFromParser),
     mPlayingBeforeSeek(PR_FALSE)
@@ -504,19 +383,17 @@ nsHTMLMediaElement::Play(void)
 
   if (mEnded) {
     mEnded = PR_FALSE;
     SetCurrentTime(0);
   }
 
   // TODO: If the playback has ended, then the user agent must set 
   // currentLoop to zero and seek to the effective start.
-  float rate = 1.0;
-  GetDefaultPlaybackRate(&rate);
-  SetPlaybackRate(rate);
+  // TODO: The playback rate must be set to the default playback rate.
   rv = mDecoder->Play();
   NS_ENSURE_SUCCESS(rv, rv);
 
   PRBool oldPaused = mPaused;
   mPaused = PR_FALSE;
   mAutoplaying = PR_FALSE;
 
   if (oldPaused)
@@ -795,20 +672,18 @@ nsresult nsHTMLMediaElement::InitializeD
   return rv;
 }
 
 void nsHTMLMediaElement::MetadataLoaded()
 {
   mNetworkState = nsIDOMHTMLMediaElement::LOADED_METADATA;
   DispatchAsyncSimpleEvent(NS_LITERAL_STRING("durationchange"));
   DispatchAsyncSimpleEvent(NS_LITERAL_STRING("loadedmetadata"));
-  float start = 0.0;
-  nsresult rv = GetStart(&start);
-  if (NS_SUCCEEDED(rv) && start > 0.0 && mDecoder)
-    mDecoder->Seek(start);
+  // TODO: Seek to the start time, as set in the start attribute.
+  mDecoder->Seek(0.0);
 }
 
 void nsHTMLMediaElement::FirstFrameLoaded()
 {
   mNetworkState = nsIDOMHTMLMediaElement::LOADED_FIRST_FRAME;
   ChangeReadyState(nsIDOMHTMLMediaElement::CAN_SHOW_CURRENT_FRAME);
   mLoadedFirstFrame = PR_TRUE;
   DispatchAsyncSimpleEvent(NS_LITERAL_STRING("loadedfirstframe"));

--- a/content/html/content/src/nsHTMLSourceElement.cpp
+++ b/content/html/content/src/nsHTMLSourceElement.cpp
@@ -99,18 +99,16 @@ NS_INTERFACE_TABLE_HEAD(nsHTMLSourceElem
 NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLSourceElement)
 
 
 NS_IMPL_ELEMENT_CLONE(nsHTMLSourceElement)
 
 
 NS_IMPL_URI_ATTR(nsHTMLSourceElement, Src, src)
 NS_IMPL_STRING_ATTR(nsHTMLSourceElement, Type, type)
-NS_IMPL_STRING_ATTR(nsHTMLSourceElement, Media, media)
-NS_IMPL_FLOAT_ATTR(nsHTMLSourceElement, PixelRatio, pixelratio)
 
 
 PRBool
 nsHTMLSourceElement::ParseAttribute(PRInt32 aNamespaceID,
                                 nsIAtom* aAttribute,
                                 const nsAString& aValue,
                                 nsAttrValue& aResult)
 {

--- a/content/html/content/src/nsHTMLVideoElement.cpp
+++ b/content/html/content/src/nsHTMLVideoElement.cpp
@@ -79,17 +79,16 @@ NS_INTERFACE_TABLE_HEAD(nsHTMLVideoEleme
                                                nsHTMLMediaElement)
 NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLVideoElement)
 
 NS_IMPL_ELEMENT_CLONE(nsHTMLVideoElement)
 
 // nsIDOMHTMLVideoElement
 NS_IMPL_INT_ATTR(nsHTMLVideoElement, Width, width)
 NS_IMPL_INT_ATTR(nsHTMLVideoElement, Height, height)
-NS_IMPL_URI_ATTR(nsHTMLVideoElement, Poster, poster)
 
 // nsIDOMHTMLVideoElement
 /* readonly attribute unsigned long videoWidth; */
 NS_IMETHODIMP nsHTMLVideoElement::GetVideoWidth(PRUint32 *aVideoWidth)
 {
   *aVideoWidth = mMediaSize.width == -1 ? 0 : mMediaSize.width;
   return NS_OK;
 }

--- a/content/media/video/test/Makefile.in
+++ b/content/media/video/test/Makefile.in
@@ -43,24 +43,21 @@ relativesrcdir  = content/media/video/te
 include $(DEPTH)/config/autoconf.mk
 include $(topsrcdir)/config/rules.mk
 
 _TEST_FILES = 	test_autoplay.html \
                 test_bug461281.html \
                 test_constants.html \
                 test_controls.html \
                 test_currentTime.html \
-                test_defaultPlaybackRate.html \
                 test_ended1.html \
                 test_ended2.html \
                 test_networkState.html \
                 test_paused.html \
-                test_playbackRate.html \
                 test_readyState.html \
-                test_start.html \
                 test_seek1.html \
                 test_seek2.html \
                 test_seek3.html \
                 test_seek4.html \
                 test_seek5.html \
                 test_seek6.html \
                 test_seek7.html \
                 test_seek8.html \

deleted file mode 100644
--- a/content/media/video/test/test_defaultPlaybackRate.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Media test: defaultPlaybackRate</title>
-  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<video id='v1'></video><audio id='a1'></audio>
-<pre id="test">
-<script class="testbody" type="text/javascript">
-var v1 = document.getElementById('v1');
-var a1 = document.getElementById('a1');
-var passed = true;
-
-is(v1.defaultPlaybackRate, 1);
-is(a1.defaultPlaybackRate, 1);
-
-v1.defaultPlaybackRate = 2.5;
-a1.defaultPlaybackRate = 2.5;
-is(v1.defaultPlaybackRate, 2.5);
-is(a1.defaultPlaybackRate, 2.5);
-
-try {
-  v1.defaultPlaybackRate = 0
-  a1.defaultPlaybackRate = 0
-  passed = false;
-} catch(e) { }
-ok(passed, "Should not be able to set defaultPlaybackRate to 0");
-
-</script>
-</pre>
-</body>
-</html>

deleted file mode 100644
--- a/content/media/video/test/test_playbackRate.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Media test: playbackRate</title>
-  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<video id='v1'></video><audio id='a1'></audio>
-<pre id="test">
-<script class="testbody" type="text/javascript">
-var v1 = document.getElementById('v1');
-var a1 = document.getElementById('a1');
-var passed = true;
-
-is(v1.playbackRate, 1);
-is(a1.playbackRate, 1);
-
-v1.playbackRate = 2.5;
-a1.playbackRate = 2.5;
-is(v1.playbackRate, 2.5);
-is(a1.playbackRate, 2.5);
-
-try {
-  v1.playbackRate = 0
-  a1.playbackRate = 0
-  passed = false;
-} catch(e) { }
-ok(passed, "Should not be able to set playbackRate to 0");
-
-</script>
-</pre>
-</body>
-</html>

deleted file mode 100644
--- a/content/media/video/test/test_start.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Media test: start</title>
-  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<video id='v1'></video><audio id='a1'></audio>
-<pre id="test">
-<script class="testbody" type="text/javascript">
-var v1 = document.getElementById('v1');
-var a1 = document.getElementById('a1');
-
-is(v1.start, 0);
-is(a1.start, 0);
-
-v1.start = 2.5;
-a1.start = 2.5;
-is(v1.start, 2.5);
-is(a1.start, 2.5);
-</script>
-</pre>
-</body>
-</html>

--- a/dom/public/idl/html/nsIDOMHTMLMediaElement.idl
+++ b/dom/public/idl/html/nsIDOMHTMLMediaElement.idl
@@ -33,83 +33,59 @@
  * and other provisions required by the GPL or the LGPL. If you do not delete
  * the provisions above, a recipient may use your version of this file under
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
 
 #include "nsIDOMHTMLElement.idl"
 #include "nsIDOMHTMLMediaError.idl"
-#include "nsIDOMHTMLTimeRanges.idl"
-#include "nsIDOMHTMLByteRanges.idl"
-#include "nsIDOMHTMLVoidCallback.idl"
 
 /**
  * The nsIDOMHTMLMediaElement interface is an interface to be implemented by the HTML
  * <audio> and <video> elements.
  *
  * For more information on this interface, please see
  * http://www.whatwg.org/specs/web-apps/current-work/#htmlmediaelement
  *
  * @status UNDER_DEVELOPMENT
  */
 
-[scriptable, uuid(c8ce31b9-d18b-48c4-8309-944f0ccb1435)]
+[scriptable, uuid(d95c02ac-92dc-4fff-ad52-41e125340fab)]
 interface nsIDOMHTMLMediaElement : nsIDOMHTMLElement
 {
   // error state
   readonly attribute nsIDOMHTMLMediaError error;
 
   // network state
            attribute DOMString src;
   readonly attribute DOMString currentSrc;
   const unsigned short EMPTY = 0;
   const unsigned short LOADING = 1;
   const unsigned short LOADED_METADATA = 2;
   const unsigned short LOADED_FIRST_FRAME = 3;
   const unsigned short LOADED = 4;
   readonly attribute unsigned short networkState;
-  readonly attribute float bufferingRate;
-  readonly attribute boolean bufferingThrottled;
-  readonly attribute nsIDOMHTMLTimeRanges buffered;
-  readonly attribute nsIDOMHTMLByteRanges bufferedBytes;
   readonly attribute unsigned long totalBytes;
   void load();
 
   // ready state
   const unsigned short DATA_UNAVAILABLE = 0;
   const unsigned short CAN_SHOW_CURRENT_FRAME = 1;
   const unsigned short CAN_PLAY = 2;
   const unsigned short CAN_PLAY_THROUGH = 3;
   readonly attribute unsigned short readyState;
   readonly attribute boolean seeking;
 
   // playback state
            attribute float currentTime;
   readonly attribute float duration;
   readonly attribute boolean paused;
-           attribute float defaultPlaybackRate;
-           attribute float playbackRate;
-  readonly attribute nsIDOMHTMLTimeRanges played;
-  readonly attribute nsIDOMHTMLTimeRanges seekable;
   readonly attribute boolean ended;
            attribute boolean autoplay;
   void play();
   void pause();
 
-  // looping
-           attribute float start;
-           attribute float end;
-           attribute float loopStart;
-           attribute float loopEnd;
-           attribute unsigned long playCount;
-           attribute unsigned long currentLoop;
-
-  // cue points
-  void addCueRange(in DOMString className, in float start, in float end, in boolean pauseOnExit, in nsIDOMHTMLVoidCallback enterCallback, in nsIDOMHTMLVoidCallback exitCallback);
-  void removeCueRanges(in DOMString className);
-
-
   // controls
            attribute boolean controls;
            attribute float volume;
            attribute boolean muted;
 };

--- a/dom/public/idl/html/nsIDOMHTMLSourceElement.idl
+++ b/dom/public/idl/html/nsIDOMHTMLSourceElement.idl
@@ -43,16 +43,14 @@
  * <source> element.
  *
  * For more information on this interface, please see
  * http://www.whatwg.org/specs/web-apps/current-work/#source
  *
  * @status UNDER_DEVELOPMENT
  */
 
-[scriptable, uuid(BF80FED9-BDBA-4C5A-AD23-203FAA4C4892)]
+[scriptable, uuid(be281029-7dd9-4268-963e-96f5196acc19)]
 interface nsIDOMHTMLSourceElement : nsIDOMHTMLElement
 {
            attribute DOMString src;
            attribute DOMString type;
-           attribute DOMString media;
-           attribute float     pixelRatio;
 };

--- a/dom/public/idl/html/nsIDOMHTMLVideoElement.idl
+++ b/dom/public/idl/html/nsIDOMHTMLVideoElement.idl
@@ -43,18 +43,17 @@
  * <video> element.
  *
  * For more information on this interface, please see
  * http://www.whatwg.org/specs/web-apps/current-work/#video
  *
  * @status UNDER_DEVELOPMENT
  */
 
-[scriptable, uuid(B08457F7-8709-4D70-AC19-90433C77CD1E)]
+[scriptable, uuid(4e3f05a5-ca9b-4576-af7f-b1d4038e6eb3)]
 interface nsIDOMHTMLVideoElement : nsIDOMHTMLMediaElement
 {
            attribute long width; 
            attribute long height;
   readonly attribute unsigned long videoWidth;
   readonly attribute unsigned long videoHeight;
-           attribute DOMString poster;
 };