Bug 1329891. Part 6 - default HandleWaitingFor{Audio,Video} to crash. r=kikuo

States that expect this event should override the function.

MozReview-Commit-ID: AmqktrDyVH5

--HG--
extra : rebase_source : 610dec3def2944c6234fd18cf71d9ee02998ad4d
extra : intermediate-source : 28ed7fa9991588b4ba131856cab0ff239f0b24e5
extra : source : 6e5d3a1d32985b6eba449f76e99538b0589bd200

dom/media/MediaDecoderStateMachine.cpp

@@ -192,6 +192,7 @@ public:
 
   // Event handlers for various events.
   virtual void HandleCDMProxyReady() {}
+  virtual void HandleAudioCaptured() {}
   virtual void HandleAudioDecoded(MediaData* aAudio)
   {
     Crash("Unexpected event!", __func__);
@@ -208,13 +209,10 @@ public:
   {
     Crash("Unexpected event!", __func__);
   }
-  virtual void HandleAudioCaptured() {}
-
   virtual void HandleWaitingForAudio()
   {
-    mMaster->WaitForData(MediaData::AUDIO_DATA);
+    Crash("Unexpected event!", __func__);
   }
-
   virtual void HandleAudioCanceled()
   {
     Crash("Unexpected event!", __func__);
@@ -223,12 +221,10 @@ public:
   {
     Crash("Unexpected event!", __func__);
   }
-
   virtual void HandleWaitingForVideo()
   {
-    mMaster->WaitForData(MediaData::VIDEO_DATA);
+    Crash("Unexpected event!", __func__);
   }
-
   virtual void HandleVideoCanceled()
   {
     Crash("Unexpected event!", __func__);
@@ -1663,6 +1659,16 @@ public:
     mMaster->EnsureVideoDecodeTaskQueued();
   }
 
+  void HandleWaitingForAudio() override
+  {
+    mMaster->WaitForData(MediaData::AUDIO_DATA);
+  }
+
+  void HandleWaitingForVideo() override
+  {
+    mMaster->WaitForData(MediaData::VIDEO_DATA);
+  }
+
   void HandleAudioWaited(MediaData::Type aType) override
   {
     mMaster->EnsureAudioDecodeTaskQueued();