Get rid of gpu_messages.h include in chrome by having the RenderWidgetHostView implementation ask...

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #import "base/mac/scoped_nsautorelease_pool.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/sys_info.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
-#include "content/browser/gpu/gpu_process_host.h"
-#include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/mac/closure_blocks_leopard_compat.h"
 #include "content/browser/plugin_process_host.h"
 #import "content/browser/renderer_host/accelerated_plugin_view_mac.h"
 #include "content/browser/renderer_host/backing_store_mac.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #import "content/browser/renderer_host/render_widget_host_view_mac_delegate.h"
 #import "content/browser/renderer_host/render_widget_host_view_mac_editcommand_helper.h"
 #import "content/browser/renderer_host/text_input_client_mac.h"
 #include "content/common/edit_command.h"
@@ skipping 894 matching lines @@
   // Called on the display link thread. Hand actual work off to the IO thread,
   // because |GpuProcessHost::Get()| can only be called there.
   // Currently, this is never called for plugins.
   if (render_widget_host_) {
     DCHECK_EQ(render_widget_host_->process()->GetID(), renderer_id);
     // |render_widget_host_->routing_id()| and |route_id| are usually not
     // equal: The former identifies the channel from the RWH in the browser
     // process to the corresponding render widget in the renderer process, while
     // the latter identifies the channel from the GpuCommandBufferStub in the
     // GPU process to the corresponding command buffer client in the renderer.
-  }
-
-  // TODO(apatrick): Send the acknowledgement via the UI thread when running in
-  // single process or in process GPU mode for now. This is bad from a
-  // performance point of view but the plan is to not use AcceleratedSurface at
-  // all in these cases.
-  if (gpu_host_id == 0) {
-    BrowserThread::PostTask(
-        BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(&GpuProcessHostUIShim::SendToGpuHost,
-                   gpu_host_id,
-                   new AcceleratedSurfaceMsg_BuffersSwappedACK(route_id)));
-  } else {
-    GpuProcessHost::SendOnIO(
-        gpu_host_id,
-        content::CAUSE_FOR_GPU_LAUNCH_NO_LAUNCH,
-        new AcceleratedSurfaceMsg_BuffersSwappedACK(route_id));
+    
+    render_widget_host_->AcknowledgeSwapBuffers(route_id, gpu_host_id);
   }
 }
 
 void RenderWidgetHostViewMac::OnAcceleratedCompositingStateChange() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   bool activated = GetRenderWidgetHost()->is_accelerated_compositing_active();
   bool changed = accelerated_compositing_active_ != activated;
   accelerated_compositing_active_ = activated;
   if (!changed)
     return;
@@ skipping 1779 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end