Support for AudioContextOptions latencyHint.

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

Index: third_party/WebKit/Source/modules/webaudio/AudioContext.h
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioContext.h b/third_party/WebKit/Source/modules/webaudio/AudioContext.h
index 9187b569422e2ad46d911718852862627a46aa74..e571af33cccc69bf7f7d20ad6a1a6482b4cdbaf8 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioContext.h
+++ b/third_party/WebKit/Source/modules/webaudio/AudioContext.h
@@ -12,6 +12,7 @@
 
 namespace blink {
 
+class AudioContextOptions;
 class Document;
 class ExceptionState;
 class ScriptState;
@@ -22,7 +23,12 @@ class AudioContext : public BaseAudioContext {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static AudioContext* create(Document&, ExceptionState&);
+  static AudioContext* create(Document&,
+                              const AudioContextOptions&,
+                              ExceptionState&);
+  static AudioContext* create(Document&,
+                              const WebAudioLatencyHint&,
+                              ExceptionState&);
 
   ~AudioContext() override;
   DECLARE_VIRTUAL_TRACE();
@@ -36,7 +42,7 @@ class AudioContext : public BaseAudioContext {
   bool hasRealtimeConstraint() final { return true; }
 
  protected:
-  AudioContext(Document&);
+  AudioContext(Document&, const WebAudioLatencyHint&);
 
   void didClose() final;