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

public/web/WebDevToolsAgentClient.h

 /*
  * Copyright (C) 2009 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebDevToolsAgentClient_h
 #define WebDevToolsAgentClient_h
 
 #include "../platform/WebCString.h"
 #include "../platform/WebCommon.h"
 
 namespace blink {
+
 class WebString;
 struct WebDeviceEmulationParams;
 struct WebDevToolsMessageData;
 struct WebRect;
 struct WebSize;
 
 class WebDevToolsAgentClient {
 public:
     virtual void sendMessageToInspectorFrontend(const WebString&) { }
     virtual void sendDebuggerOutput(const WebString&) { }
@@ skipping 54 matching lines @@
 
     virtual void setTouchEventEmulationEnabled(bool enabled, bool allowPinch) { }
 
 protected:
     ~WebDevToolsAgentClient() { }
 };
 
 } // namespace blink
 
 #endif