Support for AudioContextOptions latencyHint.

third_party/WebKit/Source/modules/webaudio/AudioNode.h

Index: third_party/WebKit/Source/modules/webaudio/AudioNode.h
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioNode.h b/third_party/WebKit/Source/modules/webaudio/AudioNode.h
index 515d8b4872e6f945cff7f953876197788625f63e..93ccabca6ac6d387fcb28e644b5a51621714d146 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioNode.h
+++ b/third_party/WebKit/Source/modules/webaudio/AudioNode.h
@@ -172,8 +172,6 @@ class MODULES_EXPORT AudioHandler : public ThreadSafeRefCounted<AudioHandler> {
   // The argument must be less than numberOfOutputs().
   AudioNodeOutput& output(unsigned);
 
-  virtual float sampleRate() const { return m_sampleRate; }
-
   // processIfNecessary() is called by our output(s) when the rendering graph
   // needs this AudioNode to process.  This method ensures that the AudioNode
   // will only process once per rendering time quantum even if it's called
@@ -272,7 +270,6 @@ class MODULES_EXPORT AudioHandler : public ThreadSafeRefCounted<AudioHandler> {
   // See http://crbug.com/404527 for the detail.
   UntracedMember<BaseAudioContext> m_context;
 
-  float m_sampleRate;
   Vector<std::unique_ptr<AudioNodeInput>> m_inputs;
   Vector<std::unique_ptr<AudioNodeOutput>> m_outputs;