Implement ConstantSourceNode

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

Index: third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp b/third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp
index 2d1e489aa55875d48d66576e229779f104f79649..d8baf5209ee66d6f4cecf1b87cc0d7c3525f3702 100644
--- a/third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/BaseAudioContext.cpp
@@ -48,6 +48,7 @@
 #include "modules/webaudio/BiquadFilterNode.h"
 #include "modules/webaudio/ChannelMergerNode.h"
 #include "modules/webaudio/ChannelSplitterNode.h"
+#include "modules/webaudio/ConstantSourceNode.h"
 #include "modules/webaudio/ConvolverNode.h"
 #include "modules/webaudio/DefaultAudioDestinationNode.h"
 #include "modules/webaudio/DelayNode.h"
@@ -331,6 +332,13 @@ AudioBufferSourceNode* BaseAudioContext::createBufferSource(ExceptionState& exce
     return node;
 }
 
+ConstantSourceNode* BaseAudioContext::createConstantSource(ExceptionState& exceptionState)
+{
+    DCHECK(isMainThread());
+
+    return ConstantSourceNode::create(*this, exceptionState);
+}
+
 MediaElementAudioSourceNode* BaseAudioContext::createMediaElementSource(HTMLMediaElement* mediaElement, ExceptionState& exceptionState)
 {
     DCHECK(isMainThread());