Rename WebCore namespace to blink in Platform

Source/platform/audio/Cone.h

Index: Source/platform/audio/Cone.h
diff --git a/Source/platform/audio/Cone.h b/Source/platform/audio/Cone.h
index 994cca57790d81713cb6ac0b7d5fc9ff4ae24eb8..5b56880be6a60d8f13daf405d3f56b788bfad494 100644
--- a/Source/platform/audio/Cone.h
+++ b/Source/platform/audio/Cone.h
@@ -32,7 +32,7 @@
 #include "platform/PlatformExport.h"
 #include "platform/geometry/FloatPoint3D.h"
 
-namespace WebCore {
+namespace blink {
 
 // Cone gain is defined according to the OpenAL specification
 
@@ -59,6 +59,6 @@ protected:
     double m_outerGain;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // Cone_h