Add PeriodicWaveConstraints dictionary

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

Index: third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp b/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp
index 9bff5cd77cca1b36ab37427efbce45957e43f231..d7be1dce34b9e3836d236978d31a710da746303a 100644
--- a/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp
@@ -60,6 +60,7 @@
 #include "modules/webaudio/OscillatorNode.h"
 #include "modules/webaudio/PannerNode.h"
 #include "modules/webaudio/PeriodicWave.h"
+#include "modules/webaudio/PeriodicWaveConstraints.h"
 #include "modules/webaudio/ScriptProcessorNode.h"
 #include "modules/webaudio/StereoPannerNode.h"
 #include "modules/webaudio/WaveShaperNode.h"
@@ -578,7 +579,7 @@ PeriodicWave* AbstractAudioContext::createPeriodicWave(DOMFloat32Array* real, DO
     return PeriodicWave::create(sampleRate(), real, imag, false);
 }
 
-PeriodicWave* AbstractAudioContext::createPeriodicWave(DOMFloat32Array* real, DOMFloat32Array* imag, const Dictionary& options, ExceptionState& exceptionState)
+PeriodicWave* AbstractAudioContext::createPeriodicWave(DOMFloat32Array* real, DOMFloat32Array* imag, const PeriodicWaveConstraints& options, ExceptionState& exceptionState)
 {
     ASSERT(isMainThread());
 
@@ -597,7 +598,8 @@ PeriodicWave* AbstractAudioContext::createPeriodicWave(DOMFloat32Array* real, DO
     }
 
     bool isNormalizationDisabled = false;
-    DictionaryHelper::getWithUndefinedOrNullCheck(options, "disableNormalization", isNormalizationDisabled);
+    if (options.hasDisableNormalization())

[Rick Byers, 2016/05/05 14:13:39]

nit: since this is a required dictionary member (with a default value) I believe
you can simplify this (and avoid specifying the default value in both the IDL
and CPP) with just:

bool isNormalizationDisabled = options.disableNormalization();

[Raymond Toy, 2016/05/05 17:11:46]

Done.  Removed the default value from the IDL was well.

+        isNormalizationDisabled = options.disableNormalization();
 
     return PeriodicWave::create(sampleRate(), real, imag, isNormalizationDisabled);
 }