Eliminate WebViewImpl's dependency on WebDevToolsAgentImpl....

webkit/api/public/WebDevToolsFrontend.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 25 matching lines @@
 namespace WebKit {
 
 class WebDevToolsFrontendClient;
 class WebString;
 class WebView;
 
 // WebDevToolsFrontend represents DevTools client sitting in the Glue. It provides
 // direct and delegate Apis to the host.
 class WebDevToolsFrontend {
 public:
-    static WebDevToolsFrontend* create(WebView* view,
-                                       WebDevToolsFrontendClient* client,
-                                       const WebString& applicationLocale);
+    WEBKIT_API static WebDevToolsFrontend* create(WebView* view,
+                                                  WebDevToolsFrontendClient* client,
+                                                  const WebString& applicationLocale);
 
-    WebDevToolsFrontend() {}
     virtual ~WebDevToolsFrontend() {}
 
     virtual void dispatchMessageFromAgent(const WebString& className,
                                           const WebString& methodName,
                                           const WebString& param1,
                                           const WebString& param2,
                                           const WebString& param3) = 0;
 };
 
 } // namespace WebKit
 
 #endif