Rename WebCore namespace to blink in Public

public/web/WebOptionElement.h

Index: public/web/WebOptionElement.h
diff --git a/public/web/WebOptionElement.h b/public/web/WebOptionElement.h
index ec3bf76ff423f5ed6b47d709a126f1857b7156bc..7a336ae77d52df19cb2b7762115b0526b3c6ed17 100644
--- a/public/web/WebOptionElement.h
+++ b/public/web/WebOptionElement.h
@@ -35,7 +35,7 @@
 #include "WebElement.h"
 
 #if BLINK_IMPLEMENTATION
-namespace WebCore { class HTMLOptionElement; }
+namespace blink { class HTMLOptionElement; }
 #endif
 
 namespace blink {
@@ -62,9 +62,9 @@ public:
     BLINK_EXPORT bool isEnabled() const;
 
 #if BLINK_IMPLEMENTATION
-    WebOptionElement(const PassRefPtrWillBeRawPtr<WebCore::HTMLOptionElement>&);
-    WebOptionElement& operator=(const PassRefPtrWillBeRawPtr<WebCore::HTMLOptionElement>&);
-    operator PassRefPtrWillBeRawPtr<WebCore::HTMLOptionElement>() const;
+    WebOptionElement(const PassRefPtrWillBeRawPtr<blink::HTMLOptionElement>&);
+    WebOptionElement& operator=(const PassRefPtrWillBeRawPtr<blink::HTMLOptionElement>&);
+    operator PassRefPtrWillBeRawPtr<blink::HTMLOptionElement>() const;
 #endif
 };