--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -5193,20 +5193,17 @@ nsLayoutUtils::GetFontFacesForText(nsIFr
         fend = std::min(next->GetContentEnd(), aEndOffset);
         next = fend < aEndOffset ?
           static_cast<nsTextFrame*>(next->GetNextContinuation()) : nullptr;
       }
     }
 
     uint32_t skipStart = iter.ConvertOriginalToSkipped(fstart);
     uint32_t skipEnd = iter.ConvertOriginalToSkipped(fend);
-    aFontFaceList->AddFontsFromTextRun(textRun,
-                                       skipStart,
-                                       skipEnd - skipStart,
-                                       curr);
+    aFontFaceList->AddFontsFromTextRun(textRun, skipStart, skipEnd - skipStart);
     curr = next;
   } while (aFollowContinuations && curr);
 
   return NS_OK;
 }
 
 /* static */
 size_t

--- a/layout/inspector/nsFontFaceList.cpp
+++ b/layout/inspector/nsFontFaceList.cpp
@@ -66,18 +66,17 @@ nsFontFaceList::GetLength(uint32_t *aLen
   return NS_OK;
 }
 
 ////////////////////////////////////////////////////////////////////////
 // nsFontFaceList
 
 nsresult
 nsFontFaceList::AddFontsFromTextRun(gfxTextRun* aTextRun,
-                                    uint32_t aOffset, uint32_t aLength,
-                                    nsIFrame* aFrame)
+                                    uint32_t aOffset, uint32_t aLength)
 {
   gfxTextRun::GlyphRunIterator iter(aTextRun, aOffset, aLength);
   while (iter.NextRun()) {
     gfxFontEntry *fe = iter.GetGlyphRun()->mFont->GetFontEntry();
     // if we have already listed this face, just make sure the match type is
     // recorded
     nsFontFace* existingFace =
       static_cast<nsFontFace*>(mFontFaces.GetWeak(fe));

--- a/layout/inspector/nsFontFaceList.h
+++ b/layout/inspector/nsFontFaceList.h
@@ -8,28 +8,26 @@
 #include "nsIDOMFontFaceList.h"
 #include "nsIDOMFontFace.h"
 #include "nsCOMPtr.h"
 #include "nsInterfaceHashtable.h"
 #include "nsHashKeys.h"
 
 class gfxFontEntry;
 class gfxTextRun;
-class nsIFrame;
 
 class nsFontFaceList : public nsIDOMFontFaceList
 {
 public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIDOMFONTFACELIST
 
   nsFontFaceList();
   virtual ~nsFontFaceList();
 
   nsresult AddFontsFromTextRun(gfxTextRun* aTextRun,
-                               uint32_t aOffset, uint32_t aLength,
-                               nsIFrame* aFrame);
+                               uint32_t aOffset, uint32_t aLength);
 
 protected:
   nsInterfaceHashtable<nsPtrHashKey<gfxFontEntry>,nsIDOMFontFace> mFontFaces;
 };
 
 #endif // __nsFontFaceList_h__