Mac ÜC: Make resize smooth

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1387 matching lines @@
   IPC::Listener* listener = listeners_.Lookup(msg.routing_id());
   if (!listener) {
     if (msg.is_sync()) {
       // The listener has gone away, so we must respond or else the caller will
       // hang waiting for a reply.
       IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
       reply->set_reply_error();
       Send(reply);
     }
 
+#if defined(OS_MACOSX)
     // If this is a SwapBuffers, we need to ack it if we're not going to handle
     // it so that the GPU process doesn't get stuck in unscheduled state.
     IPC_BEGIN_MESSAGE_MAP(RenderProcessHostImpl, msg)
       IPC_MESSAGE_HANDLER(ViewHostMsg_CompositorSurfaceBuffersSwapped,
                           OnCompositorSurfaceBuffersSwappedNoHost)
     IPC_END_MESSAGE_MAP()
+#endif
     return true;
   }
   return listener->OnMessageReceived(msg);
 }
 
 void RenderProcessHostImpl::OnChannelConnected(int32 peer_pid) {
 #if defined(IPC_MESSAGE_LOG_ENABLED)
   Send(new ChildProcessMsg_SetIPCLoggingEnabled(
       IPC::Logging::GetInstance()->Enabled()));
 #endif
@@ skipping 710 matching lines @@
       (GetUserData(kSessionStorageHolderKey));
   if (!holder)
     return;
   holder->Release(old_route_id);
 }
 
 void RenderProcessHostImpl::OnSavedPageAsMHTML(int job_id, int64 data_size) {
   MHTMLGenerationManager::GetInstance()->MHTMLGenerated(job_id, data_size);
 }
 
+#if defined(OS_MACOSX)
 void RenderProcessHostImpl::OnCompositorSurfaceBuffersSwappedNoHost(
       const ViewHostMsg_CompositorSurfaceBuffersSwapped_Params& params) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   if (!ui::LatencyInfo::Verify(params.latency_info,
                                "ViewHostMsg_CompositorSurfaceBuffersSwapped"))
     return;
+
+  if (params.use_native_widget) {
+    RenderWidgetHelper::OnNativeSurfaceBuffersSwappedOnUIThread(params);
+    return;
+  }
+
   AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
   ack_params.sync_point = 0;
   RenderWidgetHostImpl::AcknowledgeBufferPresent(params.route_id,
                                                  params.gpu_process_host_id,
                                                  ack_params);
 }
+#endif
 
 void RenderProcessHostImpl::OnGpuSwitching() {
   // We are updating all widgets including swapped out ones.
   scoped_ptr<RenderWidgetHostIterator> widgets(
       RenderWidgetHostImpl::GetAllRenderWidgetHosts());
   while (RenderWidgetHost* widget = widgets->GetNextHost()) {
     if (!widget->IsRenderView())
       continue;
 
     // Skip widgets in other processes.
@@ skipping 194 matching lines @@
 void RenderProcessHostImpl::GpuMemoryBufferAllocated(
     IPC::Message* reply,
     const gfx::GpuMemoryBufferHandle& handle) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer::WriteReplyParams(reply,
                                                                     handle);
   Send(reply);
 }
 
 }  // namespace content