Delete background tab IOSurfaces on Mac.

content/browser/gpu/gpu_process_host.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/gpu/gpu_process_host.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/histogram.h"
 #include "base/process_util.h"
 #include "base/string_piece.h"
 #include "base/threading/thread.h"
 #include "content/browser/browser_child_process_host_impl.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
+#include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/common/view_messages.h"
 #include "content/gpu/gpu_child_thread.h"
 #include "content/gpu/gpu_process.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_switches.h"
@@ skipping 369 matching lines @@
 
   return process_->Send(msg);
 }
 
 bool GpuProcessHost::OnMessageReceived(const IPC::Message& message) {
   DCHECK(CalledOnValidThread());
   IPC_BEGIN_MESSAGE_MAP(GpuProcessHost, message)
     IPC_MESSAGE_HANDLER(GpuHostMsg_ChannelEstablished, OnChannelEstablished)
     IPC_MESSAGE_HANDLER(GpuHostMsg_CommandBufferCreated, OnCommandBufferCreated)
     IPC_MESSAGE_HANDLER(GpuHostMsg_DestroyCommandBuffer, OnDestroyCommandBuffer)
+#if defined(OS_MACOSX)
+    IPC_MESSAGE_HANDLER(GpuHostMsg_AcceleratedSurfaceBuffersSwapped,
+                        OnAcceleratedSurfaceBuffersSwapped)
+#endif
 #if defined(OS_WIN) && !defined(USE_AURA)
     IPC_MESSAGE_HANDLER(GpuHostMsg_AcceleratedSurfaceBuffersSwapped,
                         OnAcceleratedSurfaceBuffersSwapped)
     IPC_MESSAGE_HANDLER(GpuHostMsg_AcceleratedSurfacePostSubBuffer,
                         OnAcceleratedSurfacePostSubBuffer)
     IPC_MESSAGE_HANDLER(GpuHostMsg_AcceleratedSurfaceSuspend,
                         OnAcceleratedSurfaceSuspend)
     IPC_MESSAGE_HANDLER(GpuHostMsg_AcceleratedSurfaceRelease,
                         OnAcceleratedSurfaceRelease)
 #endif
@@ skipping 105 matching lines @@
 }
 
 void GpuProcessHost::OnDestroyCommandBuffer(int32 surface_id) {
 #if defined(TOOLKIT_GTK)
   SurfaceRefMap::iterator it = surface_refs_.find(surface_id);
   if (it != surface_refs_.end())
     surface_refs_.erase(it);
 #endif  // defined(TOOLKIT_GTK)
 }
 
+#if defined(OS_MACOSX)
+void GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped(
+    const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params) {
+  TRACE_EVENT0("renderer",
+      "GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped");
+
+  base::ScopedClosureRunner scoped_completion_runner(
+      base::Bind(&AcceleratedSurfaceBuffersSwappedCompleted,
+                 host_id_, params.route_id, true));
+
+  gfx::PluginWindowHandle handle =
+      GpuSurfaceTracker::Get()->GetSurfaceWindowHandle(params.surface_id);
+  // Compositor window is always gfx::kNullPluginWindow.
+  // TODO(jbates) This will be removed when there are no plugin windows.

[Ken Russell (switch to Gerrit), 2012/04/18 02:00:27]

Here and throughout the review, for these TODOs, please reference
http://crbug.com/105344 .

[jbates, 2012/04/18 23:01:58]

Done.

+  if (handle != gfx::kNullPluginWindow) {
+    scoped_completion_runner.Release();
+    RouteOnUIThread(GpuHostMsg_AcceleratedSurfaceBuffersSwapped(params));
+    return;
+  }
+
+  int render_process_id = 0;
+  int render_widget_id = 0;
+  if (!GpuSurfaceTracker::Get()->GetRenderWidgetIDForSurface(
+        params.surface_id, &render_process_id, &render_widget_id)) {
+    return;
+  }
+  std::map<int, scoped_refptr<RenderWidgetHelper> >::const_iterator ci =
+      render_widget_helpers_.find(render_process_id);
+  if (ci == render_widget_helpers_.end())
+    return;
+
+  scoped_completion_runner.Release();
+  ViewHostMsg_UpdateRect_Params update_rect_params;
+  update_rect_params.gpu_surface_id = params.surface_id;
+  update_rect_params.gpu_surface_handle = params.surface_handle;
+  update_rect_params.gpu_route_id = params.route_id;
+  update_rect_params.gpu_process_host_id = host_id_;
+  ci->second->DidReceiveUpdateMsg(ViewHostMsg_UpdateRect(render_widget_id,
+                                                         update_rect_params));
+}
+#endif  // OS_MACOSX
+
 #if defined(OS_WIN) && !defined(USE_AURA)
 
 void GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params) {
   TRACE_EVENT0("renderer",
       "GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped");
 
   base::ScopedClosureRunner scoped_completion_runner(
       base::Bind(&AcceleratedSurfaceBuffersSwappedCompleted,
                  host_id_,
@@ skipping 83 matching lines @@
 
 void GpuProcessHost::ForceShutdown() {
   // This is only called on the IO thread so no race against the constructor
   // for another GpuProcessHost.
   if (g_gpu_process_hosts[kind_] == this)
     g_gpu_process_hosts[kind_] = NULL;
 
   process_->ForceShutdown();
 }
 
+void GpuProcessHost::RegisterRenderWidgetHelper(
+    int render_process_id,
+    const scoped_refptr<RenderWidgetHelper>& render_widget_helper) {
+  render_widget_helpers_[render_process_id] = render_widget_helper;
+}
+
+void GpuProcessHost::UnregisterRenderWidgetHelper(int render_process_id) {
+  render_widget_helpers_.erase(render_process_id);
+}
+
 bool GpuProcessHost::LaunchGpuProcess(const std::string& channel_id) {
   if (!(gpu_enabled_ &&
       GpuDataManagerImpl::GetInstance()->ShouldUseSoftwareRendering()) &&
       !hardware_gpu_enabled_) {
     SendOutstandingReplies();
     return false;
   }
 
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
 
@@ skipping 95 matching lines @@
     const IPC::ChannelHandle& channel_handle,
     base::ProcessHandle renderer_process_for_gpu,
     const content::GPUInfo& gpu_info) {
   callback.Run(channel_handle, gpu_info);
 }
 
 void GpuProcessHost::CreateCommandBufferError(
     const CreateCommandBufferCallback& callback, int32 route_id) {
   callback.Run(route_id);
 }