Bug 1456324: Part 2 - Mark infallible nsIPluginTag getters as infallible. r=Gijs
authorKris Maglione <maglione.k@gmail.com>
Tue, 24 Apr 2018 15:04:11 -0700
changeset 469196 cbcb2bea294230c9dcd3edc67b5728a9ae1d9f75
parent 469195 3a593e7961a2d230a729bd9060d2c83ea7ae86e9
child 469197 95b7f4ae23fdaf6d806ffac8a402e5f043dbd1c5
push id9165
push userasasaki@mozilla.com
push dateThu, 26 Apr 2018 21:04:54 +0000
treeherdermozilla-beta@064c3804de2e [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
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Bug 1456324: Part 2 - Mark infallible nsIPluginTag getters as infallible. r=Gijs MozReview-Commit-ID: B7fkZVeDfJZ
--- a/dom/plugins/base/nsIPluginTag.idl
+++ b/dom/plugins/base/nsIPluginTag.idl
@@ -2,17 +2,17 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "nsISupports.idl"
 interface nsIURI;
-[scriptable, uuid(5daa99d5-265a-4397-b429-c943803e2619)]
+[builtinclass, scriptable, uuid(5daa99d5-265a-4397-b429-c943803e2619)]
 interface nsIPluginTag : nsISupports
   // enabledState is stored as one of the following as an integer in prefs,
   // so if new states are added, they must not renumber the existing states.
   const unsigned long STATE_DISABLED = 0;
   const unsigned long STATE_CLICKTOPLAY = 1;
   const unsigned long STATE_ENABLED = 2;
@@ -25,31 +25,38 @@ interface nsIPluginTag : nsISupports
   // The 'nice' name of this plugin, e.g. 'flash' 'java'
   readonly attribute AUTF8String niceName;
    * true only if this plugin is "hardblocked" and cannot be enabled.
   // FIXME-jsplugins QI to fakePluginTag possible
   // FIXME-jsplugins implement missing + tests (whatever that means)
+  [infallible]
   readonly attribute boolean blocklisted;
    * true if the state is non-default and locked, false otherwise.
+  [infallible]
   readonly attribute boolean isEnabledStateLocked;
   // If this plugin is capable of being used (not disabled, blocklisted, etc)
+  [infallible]
   readonly attribute boolean active;
   // Get a specific nsIBlocklistService::STATE_*
+  [infallible]
   readonly attribute unsigned long blocklistState;
+  [infallible]
   readonly attribute boolean disabled;
+  [infallible]
   readonly attribute boolean clicktoplay;
+  [infallible]
   readonly attribute boolean loaded;
   // See the STATE_* values above.
            attribute unsigned long enabledState;
   readonly attribute PRTime lastModifiedTime;
   void getMimeTypes([optional] out unsigned long aCount,
                     [retval, array, size_is(aCount)] out wstring aResults);
@@ -61,17 +68,17 @@ interface nsIPluginTag : nsISupports
                      out wstring aResults);
  * An interface representing a "fake" plugin: one implemented in JavaScript, not
  * as a NPAPI plug-in.  See nsIPluginHost.registerFakePlugin and the
  * documentation for the FakePluginTagInit dictionary.
-[scriptable, uuid(6d22c968-226d-4156-b230-da6ad6bbf6e8)]
+[builtinclass, scriptable, uuid(6d22c968-226d-4156-b230-da6ad6bbf6e8)]
 interface nsIFakePluginTag : nsIPluginTag
    * The URI that should be loaded into the tag (as a frame) to handle the
    * plugin. Note that the original data/src value for the plugin is not loaded
    * and will need to be requested by the handler via XHR or similar if desired.
   readonly attribute nsIURI handlerURI;
--- a/dom/plugins/base/nsPluginHost.cpp
+++ b/dom/plugins/base/nsPluginHost.cpp
@@ -300,18 +300,17 @@ class BlocklistPromiseHandler final : pu
         MOZ_ASSERT(false, "Blocklist should always return int32");
       int32_t newState = aValue.toInt32();
       MOZ_ASSERT(newState >= 0 && newState < nsIBlocklistService::STATE_MAX,
         "Shouldn't get an out of bounds blocklist state");
       // Check the old and new state and see if there was a change:
-      uint32_t oldState = nsIBlocklistService::STATE_NOT_BLOCKED;
-      MOZ_ALWAYS_SUCCEEDS(mTag->GetBlocklistState(&oldState));
+      uint32_t oldState = mTag->GetBlocklistState();
       bool changed = oldState != (uint32_t)newState;
       if (newState == nsIBlocklistService::STATE_SOFTBLOCKED && mShouldDisableWhenSoftblocked) {
         changed = true;
       sPluginBlocklistStatesChangedSinceLastWrite |= changed;