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 71adc2dc9b586fa158271080e7aa5482efd2d00f..bb7de30367e324ab768e6a815887d9b68cb63abc 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioNode.h
+++ b/third_party/WebKit/Source/modules/webaudio/AudioNode.h
@@ -167,8 +167,6 @@ 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
@@ -262,7 +260,6 @@ 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;