Load NPAPI plugin resources through the browser process directly instead of going through the render

content/common/plugin_process_messages.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.
 //
 // Multiply-included message file, hence no include guard.
 
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/public/common/common_param_traits.h"
@@ skipping 30 matching lines @@
                      uint64 /* max_age */)
 
 
 //-----------------------------------------------------------------------------
 // PluginProcessHost messages
 // These are messages sent from the plugin process to the browser process.
 // Response to a PluginProcessMsg_CreateChannel message.
 IPC_MESSAGE_CONTROL1(PluginProcessHostMsg_ChannelCreated,
                      IPC::ChannelHandle /* channel_handle */)
 
+IPC_MESSAGE_CONTROL1(PluginProcessHostMsg_ChannelDestroyed,
+                     int /* renderer_id */)
+
 IPC_MESSAGE_CONTROL1(PluginProcessHostMsg_ClearSiteDataResult,
                      bool /* success */)
 
 #if defined(OS_WIN)
 // Destroys the given window's parent on the UI thread.
 IPC_MESSAGE_CONTROL2(PluginProcessHostMsg_PluginWindowDestroyed,
                      HWND /* window */,
                      HWND /* parent */)
 #endif
 
@@ skipping 29 matching lines @@
 // Notifies the browser that the plugin has hidden a window.
 IPC_MESSAGE_CONTROL2(PluginProcessHostMsg_PluginHideWindow,
                      uint32 /* window ID */,
                      gfx::Rect /* window rect */)
 
 // Notifies the browser that a plugin instance has requested a cursor
 // visibility change.
 IPC_MESSAGE_CONTROL1(PluginProcessHostMsg_PluginSetCursorVisibility,
                      bool /* cursor visibility */)
 #endif