Cleanup namespace usage in public/web/Web[A-M]*.h.

public/web/WebDocument.h

Index: public/web/WebDocument.h
diff --git a/public/web/WebDocument.h b/public/web/WebDocument.h
index f995936fded18a106f530048e649352de83c7f70..7e22b535d41443ffc726097e65915873dfb89474 100644
--- a/public/web/WebDocument.h
+++ b/public/web/WebDocument.h
@@ -40,10 +40,6 @@
 #include "WebSecurityOrigin.h"
 
 #if BLINK_IMPLEMENTATION
-namespace blink {
-class Document;
-class DocumentType;
-}
 namespace WTF { template <typename T> class PassRefPtr; }
 #endif
 
@@ -53,6 +49,9 @@ template <class T> class Handle;
 }
 
 namespace blink {
+
+class Document;
+class DocumentType;
 class WebAXObject;
 class WebDocumentType;
 class WebElement;
@@ -139,9 +138,9 @@ public:
     BLINK_EXPORT v8::Handle<v8::Value> registerEmbedderCustomElement(const WebString& name, v8::Handle<v8::Value> options, WebExceptionCode&);
 
 #if BLINK_IMPLEMENTATION
-    WebDocument(const PassRefPtrWillBeRawPtr<blink::Document>&);
-    WebDocument& operator=(const PassRefPtrWillBeRawPtr<blink::Document>&);
-    operator PassRefPtrWillBeRawPtr<blink::Document>() const;
+    WebDocument(const PassRefPtrWillBeRawPtr<Document>&);
+    WebDocument& operator=(const PassRefPtrWillBeRawPtr<Document>&);
+    operator PassRefPtrWillBeRawPtr<Document>() const;
 #endif
 };