Define default values for options dictionaries for WebAudio

third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 520 matching lines @@
   return PeriodicWave::Create(*this, real, imag, false, exception_state);
 }
 
 PeriodicWave* BaseAudioContext::createPeriodicWave(
     DOMFloat32Array* real,
     DOMFloat32Array* imag,
     const PeriodicWaveConstraints& options,
     ExceptionState& exception_state) {
   DCHECK(IsMainThread());
 
-  bool disable = options.hasDisableNormalization()
-                     ? options.disableNormalization()
-                     : false;
+  bool disable = options.disableNormalization();
 
   return PeriodicWave::Create(*this, real, imag, disable, exception_state);
 }
 
 IIRFilterNode* BaseAudioContext::createIIRFilter(
     Vector<double> feedforward_coef,
     Vector<double> feedback_coef,
     ExceptionState& exception_state) {
   DCHECK(IsMainThread());
 
@@ skipping 367 matching lines @@
 }
 
 SecurityOrigin* BaseAudioContext::GetSecurityOrigin() const {
   if (GetExecutionContext())
     return GetExecutionContext()->GetSecurityOrigin();
 
   return nullptr;
 }
 
 }  // namespace blink