bug 1208327 make enum AudioContextOperation strongly typed and forward declare instead of including AudioContext.h r=roc

AudioContext.h is now exported only under mozilla.dom.

--HG--
extra : rebase_source : 7fc0a25a6bb8efe497a0e779dca2df5d7e3397b1

dom/media/GraphDriver.h

@@ -13,7 +13,6 @@
 #include "AudioSegment.h"
 #include "SelfRef.h"
 #include "mozilla/Atomics.h"
-#include "AudioContext.h"
 
 struct cubeb_stream;
 

dom/media/MediaStreamGraph.cpp

@@ -2911,9 +2911,15 @@ MediaStreamGraphImpl::AudioContextOperationCompleted(MediaStream* aStream,
 
   AudioContextState state;
   switch (aOperation) {
-    case Suspend: state = AudioContextState::Suspended; break;
-    case Resume: state = AudioContextState::Running; break;
-    case Close: state = AudioContextState::Closed; break;
+    case AudioContextOperation::Suspend:
+      state = AudioContextState::Suspended;
+      break;
+    case AudioContextOperation::Resume:
+      state = AudioContextState::Running;
+      break;
+    case AudioContextOperation::Close:
+      state = AudioContextState::Closed;
+      break;
     default: MOZ_CRASH("Not handled.");
   }
 

dom/media/MediaStreamGraph.h

@@ -23,7 +23,6 @@
 #include "nsAutoRef.h"
 #include <speex/speex_resampler.h>
 #include "DOMMediaStream.h"
-#include "AudioContext.h"
 
 class nsIRunnable;
 
@@ -38,6 +37,10 @@ namespace mozilla {
 
 extern PRLogModuleInfo* gMediaStreamGraphLog;
 
+namespace dom {
+  enum class AudioContextOperation;
+}
+
 /*
  * MediaStreamGraph is a framework for synchronized audio/video processing
  * and playback. It is designed to be used by other browser components such as

dom/media/webaudio/AudioContext.h

@@ -111,7 +111,7 @@ private:
   AudioContextState mNewState;
 };
 
-enum AudioContextOperation { Suspend, Resume, Close };
+enum class AudioContextOperation { Suspend, Resume, Close };
 
 class AudioContext final : public DOMEventTargetHelper,
                            public nsIMemoryReporter

dom/media/webaudio/moz.build

@@ -21,7 +21,6 @@ MOCHITEST_CHROME_MANIFESTS += ['test/chrome.ini']
 EXPORTS += [
     'AlignedTArray.h',
     'AudioBlock.h',
-    'AudioContext.h',
     'AudioEventTimeline.h',
     'AudioNodeEngine.h',
     'AudioNodeExternalInputStream.h',