Move the exception logic to the AudioNode creator

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

Index: third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h
diff --git a/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h b/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h
index df197dd959e968e96fa73b291b3417d46461d356..53c158fbf02b32cbf9f524272e9b02c81b760289 100644
--- a/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h
+++ b/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h
@@ -135,6 +135,7 @@ public:
 
     String state() const;
     AudioContextState contextState() const { return m_contextState; }
+    void throwExceptionForClosedState(ExceptionState&);
 
     AudioBuffer* createBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
 
@@ -293,8 +294,6 @@ private:
     bool m_isCleared;
     void clear();
 
-    void throwExceptionForClosedState(ExceptionState&);
-
     // When the context goes away, there might still be some sources which
     // haven't finished playing.  Make sure to release them here.
     void releaseActiveSourceNodes();