Add NPChannelBase::GetModalDialogEvent() to avoid content/plugin/ include from npobject_proxy.cc

content/plugin/plugin_channel.h

 // Copyright (c) 2011 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_PLUGIN_PLUGIN_CHANNEL_H_
 #define CONTENT_PLUGIN_PLUGIN_CHANNEL_H_
 #pragma once
 
 #include <vector>
 #include "base/memory/ref_counted.h"
@@ skipping 25 matching lines @@
   virtual bool Send(IPC::Message* msg);
   virtual bool OnMessageReceived(const IPC::Message& message);
 
   base::ProcessHandle renderer_handle() const { return renderer_handle_; }
   int renderer_id() { return renderer_id_; }
 
   virtual int GenerateRouteID();
 
   // Returns the event that's set when a call to the renderer causes a modal
   // dialog to come up.
-  base::WaitableEvent* GetModalDialogEvent(gfx::NativeViewId containing_window);
+  virtual base::WaitableEvent* GetModalDialogEvent(
+      gfx::NativeViewId containing_window);
 
   bool in_send() { return in_send_ != 0; }
 
   bool incognito() { return incognito_; }
   void set_incognito(bool value) { incognito_ = value; }
 
 #if defined(OS_POSIX)
   int TakeRendererFileDescriptor() {
     return channel_->TakeClientFileDescriptor();
   }
@@ skipping 38 matching lines @@
 
   int in_send_;  // Tracks if we're in a Send call.
   bool log_messages_;  // True if we should log sent and received messages.
   bool incognito_; // True if the renderer is in incognito mode.
   scoped_refptr<MessageFilter> filter_;  // Handles the modal dialog events.
 
   DISALLOW_COPY_AND_ASSIGN(PluginChannel);
 };
 
 #endif  // CONTENT_PLUGIN_PLUGIN_CHANNEL_H_