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

public/web/WebDOMFileSystem.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 #include "platform/heap/Handle.h"
 #endif
 
 namespace v8 {
 class Isolate;
 class Object;
 class Value;
 template <class T> class Handle;
 }
 
-namespace blink { class DOMFileSystem; }
+namespace blink {
 
-namespace blink {
+class DOMFileSystem;
 
 class WebDOMFileSystem {
 public:
     enum SerializableType {
         SerializableTypeSerializable,
         SerializableTypeNotSerializable,
     };
     enum EntryType {
         EntryTypeFile,
         EntryTypeDirectory,
@@ skipping 31 matching lines @@
 
     BLINK_EXPORT v8::Handle<v8::Value> toV8Value(v8::Handle<v8::Object> creationContext, v8::Isolate*);
     BLINK_EXPORT v8::Handle<v8::Value> createV8Entry(
         const WebString& path,
         EntryType,
         v8::Handle<v8::Object> creationContext, v8::Isolate*);
 
     bool isNull() const { return m_private.isNull(); }
 
 #if BLINK_IMPLEMENTATION
-    WebDOMFileSystem(blink::DOMFileSystem*);
-    WebDOMFileSystem& operator=(blink::DOMFileSystem*);
+    WebDOMFileSystem(DOMFileSystem*);
+    WebDOMFileSystem& operator=(DOMFileSystem*);
 #endif
 
 private:
-    WebPrivatePtr<blink::DOMFileSystem> m_private;
+    WebPrivatePtr<DOMFileSystem> m_private;
 };
 
 } // namespace blink
 
 #endif // WebDOMFileSystem_h