Rename WebCore namespace to blink in Public

public/web/WebDocumentType.h

Index: public/web/WebDocumentType.h
diff --git a/public/web/WebDocumentType.h b/public/web/WebDocumentType.h
index a23eebd9554dfef5c2c34d1bd13df199e7972bf5..9ce8f55563714b6b0b940031dda998e9203cb6e4 100644
--- a/public/web/WebDocumentType.h
+++ b/public/web/WebDocumentType.h
@@ -34,7 +34,7 @@
 #include "WebNode.h"
 
 #if BLINK_IMPLEMENTATION
-namespace WebCore { class DocumentType; }
+namespace blink { class DocumentType; }
 namespace WTF { template <typename T> class PassRefPtr; }
 #endif
 
@@ -57,9 +57,9 @@ public:
     BLINK_EXPORT WebString name() const;
 
 #if BLINK_IMPLEMENTATION
-    WebDocumentType(const PassRefPtrWillBeRawPtr<WebCore::DocumentType>&);
-    WebDocumentType& operator=(const PassRefPtrWillBeRawPtr<WebCore::DocumentType>&);
-    operator PassRefPtrWillBeRawPtr<WebCore::DocumentType>() const;
+    WebDocumentType(const PassRefPtrWillBeRawPtr<blink::DocumentType>&);
+    WebDocumentType& operator=(const PassRefPtrWillBeRawPtr<blink::DocumentType>&);
+    operator PassRefPtrWillBeRawPtr<blink::DocumentType>() const;
 #endif
 };