nit: Remove all unused includes in BrowserPluginBindings.

content/renderer/browser_plugin/browser_plugin_bindings.h

 // Copyright (c) 2012 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_BROWSER_PLUGIN_BROWSER_PLUGIN_BINDINGS_H__
 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_BINDINGS_H__
 
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
-#include "ppapi/shared_impl/resource.h"
 #include "third_party/npapi/bindings/npruntime.h"
 
 namespace content {
 
 class BrowserPlugin;
 class BrowserPluginPropertyBinding;
 
 class BrowserPluginBindings {
  public:
   // BrowserPluginNPObject is a simple struct that adds a pointer back to a
@@ skipping 38 matching lines @@
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<BrowserPluginBindings> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginBindings);
 };
 
 }  // namespace content
 
 #endif  //  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_BINDINGS_H__