Rename WebCore namespace to blink in Platform

Source/platform/blob/BlobData.h

Index: Source/platform/blob/BlobData.h
diff --git a/Source/platform/blob/BlobData.h b/Source/platform/blob/BlobData.h
index 7a8f0d6328e4a6fe4a8e8776316e2bd8481dda9a..d36f2bd61780c470f0027b0bfc99da6cb981c25a 100644
--- a/Source/platform/blob/BlobData.h
+++ b/Source/platform/blob/BlobData.h
@@ -38,7 +38,7 @@
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 class BlobDataHandle;
 
@@ -232,6 +232,6 @@ private:
     const long long m_size;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // BlobData_h