content: Cleanup class/struct forward declarations

content/renderer/java/gin_java_bridge_dispatcher.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_H_
 #define CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_H_
 
 #include <map>
 #include <memory>
 #include <set>
 
 #include "base/id_map.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/common/android/gin_java_bridge_errors.h"
 #include "content/public/renderer/render_frame_observer.h"
 
-namespace blink {
-class WebFrame;
-}
-
 namespace content {
 
 class GinJavaBridgeObject;
 
 // This class handles injecting Java objects into the main frame of a
 // RenderView. The 'add' and 'remove' messages received from the browser
 // process modify the entries in a map of 'pending' objects. These objects are
 // bound to the window object of the main frame when that window object is next
 // cleared. These objects remain bound until the window object is cleared
 // again.
@@ skipping 38 matching lines @@
   NamedObjectMap named_objects_;
   ObjectMap objects_;
   bool inside_did_clear_window_object_;
 
   DISALLOW_COPY_AND_ASSIGN(GinJavaBridgeDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_H_