Rename WebCore to blink in Modules

Source/modules/webaudio/GainNode.cpp

Index: Source/modules/webaudio/GainNode.cpp
diff --git a/Source/modules/webaudio/GainNode.cpp b/Source/modules/webaudio/GainNode.cpp
index 6a6656c51442b1621862aa8bab8503ff7adf4739..8b79511e6905948297ebdfb291930afe00e12ad9 100644
--- a/Source/modules/webaudio/GainNode.cpp
+++ b/Source/modules/webaudio/GainNode.cpp
@@ -32,7 +32,7 @@
 #include "modules/webaudio/AudioNodeInput.h"
 #include "modules/webaudio/AudioNodeOutput.h"
 
-namespace WebCore {
+namespace blink {
 
 GainNode::GainNode(AudioContext* context, float sampleRate)
     : AudioNode(context, sampleRate)
@@ -114,6 +114,6 @@ void GainNode::trace(Visitor* visitor)
     AudioNode::trace(visitor);
 }
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)