Bug 1289004. Part 1 - Constify and devirtualize some functions. r=cpearce.

MozReview-Commit-ID: 8f14ekpinCR

--HG--
extra : rebase_source : ca1d62df789639817e4c7da01919783038db22f0
extra : source : 5dc15cac9b631fd10b03902b3ba627fd763a49aa

dom/media/MediaDecoder.cpp

@@ -482,7 +482,7 @@ MediaDecoder::SetInfinite(bool aInfinite)
 }
 
 bool
-MediaDecoder::IsInfinite()
+MediaDecoder::IsInfinite() const
 {
   MOZ_ASSERT(NS_IsMainThread());
   return mInfiniteStream;

dom/media/MediaDecoder.h

@@ -220,7 +220,7 @@ public:
   virtual double GetDuration();
 
   // Return true if the stream is infinite (see SetInfinite).
-  virtual bool IsInfinite();
+  bool IsInfinite() const;
 
   // Called by MediaResource when some data has been received.
   // Call on the main thread only.
@@ -232,12 +232,12 @@ public:
 
   // Return true if we are currently seeking in the media resource.
   // Call on the main thread only.
-  virtual bool IsSeeking() const;
+  bool IsSeeking() const;
 
   // Return true if the decoder has reached the end of playback or the decoder
   // has shutdown.
   // Call on the main thread only.
-  virtual bool IsEndedOrShutdown() const;
+  bool IsEndedOrShutdown() const;
 
   // Return true if the MediaDecoderOwner's error attribute is not null.
   // If the MediaDecoder is shutting down, OwnerHasError will return true.