Add constructors for WebAudio nodes

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

Index: third_party/WebKit/Source/modules/webaudio/AudioBuffer.h
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioBuffer.h b/third_party/WebKit/Source/modules/webaudio/AudioBuffer.h
index a3b8ba1398afad60a60bbb673d444e97046ca3e8..52db2d37faf4227beb1860af8478286a97320d2b 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioBuffer.h
+++ b/third_party/WebKit/Source/modules/webaudio/AudioBuffer.h
@@ -40,6 +40,8 @@
 namespace blink {
 
 class AudioBus;
+class AudioBufferOptions;
+class BaseAudioContext;
 class ExceptionState;
 
 class MODULES_EXPORT AudioBuffer final : public GarbageCollected<AudioBuffer>, public ScriptWrappable {
@@ -47,6 +49,7 @@ class MODULES_EXPORT AudioBuffer final : public GarbageCollected<AudioBuffer>, p
 public:
     static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate);
     static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
+    static AudioBuffer* create(BaseAudioContext*, const AudioBufferOptions&, ExceptionState&);
 
     // Returns 0 if data is not a valid audio file.
     static AudioBuffer* createFromAudioFileData(const void* data, size_t dataSize, bool mixToMono, float sampleRate);