Bug 1203585 - Remove some dead code in GraphDriver.cpp. r=jesup

--HG--
extra : commitid : LDSLPjpJdAz

dom/media/GraphDriver.cpp

@@ -541,7 +541,6 @@ AudioCallbackDriver::AudioCallbackDriver(MediaStreamGraphImpl* aGraphImpl)
   , mStarted(false)
   , mAudioChannel(aGraphImpl->AudioChannel())
   , mInCallback(false)
-  , mPauseRequested(false)
   , mMicrophoneActive(false)
 #ifdef XP_MACOSX
   , mCallbackReceivedWhileSwitching(0)
@@ -799,11 +798,6 @@ AudioCallbackDriver::DataCallback(AudioDataValue* aBuffer, long aFrames)
 {
   bool stillProcessing;
 
-  if (mPauseRequested) {
-    PodZero(aBuffer, aFrames * mGraphImpl->AudioChannelCount());
-    return aFrames;
-  }
-
 #ifdef XP_MACOSX
   if (OSXDeviceSwitchingWorkaround()) {
     PodZero(aBuffer, aFrames * mGraphImpl->AudioChannelCount());

dom/media/GraphDriver.h

@@ -149,19 +149,6 @@ public:
     return mCurrentTimeStamp;
   }
 
-  bool IsWaiting() {
-    return mWaitState == WAITSTATE_WAITING_INDEFINITELY ||
-           mWaitState == WAITSTATE_WAITING_FOR_NEXT_ITERATION;
-  }
-
-  bool IsWaitingIndefinitly() {
-    return mWaitState == WAITSTATE_WAITING_INDEFINITELY;
-  }
-
-  GraphTime IterationStart() {
-    return mIterationStart;
-  }
-
   GraphTime IterationEnd() {
     return mIterationEnd;
   }
@@ -191,13 +178,6 @@ public:
   void SetGraphTime(GraphDriver* aPreviousDriver,
                     GraphTime aLastSwitchNextIterationStart,
                     GraphTime aLastSwitchNextIterationEnd);
-
-  /**
-   * Call this to indicate that another iteration of the control loop is
-   * required immediately. The monitor must already be held.
-   */
-  void EnsureImmediateWakeUpLocked();
-
   /**
    * Call this to indicate that another iteration of the control loop is
    * required on its regular schedule. The monitor must not be held.
@@ -526,10 +506,6 @@ private:
   /* This is atomic and is set by the audio callback thread. It can be read by
    * any thread safely. */
   Atomic<bool> mInCallback;
-  /* A thread has been created to be able to pause and restart the audio thread,
-   * but has not done so yet. This indicates that the callback should return
-   * early */
-  bool mPauseRequested;
   /**
    * True if microphone is being used by this process. This is synchronized by
    * the graph's monitor. */