Remove some dead BrowserPlugin and OOPIF compositing code.

content/browser/browser_plugin/browser_plugin_message_filter.cc

 // 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.
 
 #include "content/browser/browser_plugin/browser_plugin_message_filter.h"
 
 #include "base/supports_user_data.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/common/browser_plugin/browser_plugin_constants.h"
 #include "content/common/browser_plugin/browser_plugin_messages.h"
-#include "content/common/gpu/gpu_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_plugin_guest_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
 
 namespace content {
 
 BrowserPluginMessageFilter::BrowserPluginMessageFilter(int render_process_id)
     : BrowserMessageFilter(BrowserPluginMsgStart),
       render_process_id_(render_process_id) {
 }
 
 BrowserPluginMessageFilter::~BrowserPluginMessageFilter() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 }
 
 bool BrowserPluginMessageFilter::OnMessageReceived(
     const IPC::Message& message) {
   // Any message requested by a BrowserPluginGuest should be routed through
   // a BrowserPluginGuestManager.
   if (BrowserPluginGuest::ShouldForwardToBrowserPluginGuest(message)) {
     ForwardMessageToGuest(message);
     // We always swallow messages destined for BrowserPluginGuestManager because
     // we're on the UI thread and fallback code is expected to be run on the IO
     // thread.
     return true;
   }
-  bool handled = true;
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  IPC_BEGIN_MESSAGE_MAP(BrowserPluginMessageFilter, message)
-    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_BuffersSwappedACK,
-                        OnSwapBuffersACK)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
+  return false;
 }
 
 void BrowserPluginMessageFilter::OnDestruct() const {
   BrowserThread::DeleteOnIOThread::Destruct(this);
 }
 
 void BrowserPluginMessageFilter::OverrideThreadForMessage(
     const IPC::Message& message, BrowserThread::ID* thread) {
   if (BrowserPluginGuest::ShouldForwardToBrowserPluginGuest(message))
     *thread = BrowserThread::UI;
@@ skipping 20 matching lines @@
           ->GetGuestByInstanceID(embedder_web_contents,
                                  browser_plugin_instance_id);
   if (!guest_web_contents)
     return;
 
   static_cast<WebContentsImpl*>(guest_web_contents)
       ->GetBrowserPluginGuest()
       ->OnMessageReceivedFromEmbedder(message);
 }
 
-void BrowserPluginMessageFilter::OnSwapBuffersACK(
-    const FrameHostMsg_BuffersSwappedACK_Params& params) {
-  GpuProcessHost* gpu_host = GpuProcessHost::FromID(params.gpu_host_id);
-  if (!gpu_host)
-    return;
-  AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
-  ack_params.mailbox = params.mailbox;
-  ack_params.sync_point = params.sync_point;
-  gpu_host->Send(new AcceleratedSurfaceMsg_BufferPresented(params.gpu_route_id,
-                                                           ack_params));
-}
-
 } // namespace content