Bug 1206574 - Remove AbstractMediaDecoder::IsShutdown(). r=cpearce.

dom/media/AbstractMediaDecoder.h

@@ -52,9 +52,6 @@ public:
   // state.
   virtual ReentrantMonitor& GetReentrantMonitor() = 0;
 
-  // Returns true if the decoder is shut down.
-  virtual bool IsShutdown() const = 0;
-
   // A special version of the above for the ogg decoder that is allowed to be
   // called cross-thread.
   virtual bool IsOggDecoderShutdown() { return false; }

dom/media/MediaDecoder.cpp

@@ -1302,12 +1302,6 @@ MediaDecoder::NotifyWaitingForResourcesStatusChanged()
   }
 }
 
-bool MediaDecoder::IsShutdown() const {
-  MOZ_ASSERT(NS_IsMainThread());
-  NS_ENSURE_TRUE(GetStateMachine(), true);
-  return mStateMachineIsShutdown;
-}
-
 // Drop reference to state machine.  Only called during shutdown dance.
 void MediaDecoder::BreakCycles() {
   SetStateMachine(nullptr);

dom/media/MediaDecoder.h

@@ -530,9 +530,6 @@ public:
   // state.
   ReentrantMonitor& GetReentrantMonitor() override;
 
-  // Returns true if the decoder is shut down
-  bool IsShutdown() const final override;
-
   // Constructs the time ranges representing what segments of the media
   // are buffered and playable.
   virtual media::TimeIntervals GetBuffered();

dom/media/webaudio/BufferDecoder.cpp

@@ -45,13 +45,6 @@ BufferDecoder::GetReentrantMonitor()
   return mReentrantMonitor;
 }
 
-bool
-BufferDecoder::IsShutdown() const
-{
-  // BufferDecoder cannot be shut down.
-  return false;
-}
-
 bool
 BufferDecoder::OnStateMachineTaskQueue() const
 {

dom/media/webaudio/BufferDecoder.h

@@ -33,8 +33,6 @@ public:
 
   virtual ReentrantMonitor& GetReentrantMonitor() final override;
 
-  virtual bool IsShutdown() const final override;
-
   virtual bool OnStateMachineTaskQueue() const final override;
 
   virtual bool OnDecodeTaskQueue() const final override;