Rename WebCore namespace to blink in Platform

Source/platform/ContentDecryptionModuleResult.h

Index: Source/platform/ContentDecryptionModuleResult.h
diff --git a/Source/platform/ContentDecryptionModuleResult.h b/Source/platform/ContentDecryptionModuleResult.h
index 841a3228eeb1df1e352a5b8aa5f8a083eb086045..3f824b810984e746fc5f1f180690ad0c715e484c 100644
--- a/Source/platform/ContentDecryptionModuleResult.h
+++ b/Source/platform/ContentDecryptionModuleResult.h
@@ -13,7 +13,7 @@ namespace blink {
 class WebString;
 }
 
-namespace WebCore {
+namespace blink {
 
 // Used to notify completion of a CDM operation.
 class ContentDecryptionModuleResult : public GarbageCollectedFinalized<ContentDecryptionModuleResult> {
@@ -32,6 +32,6 @@ public:
     virtual void trace(Visitor*) { }
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // ContentDecryptionModuleResult_h