Add reference-counting for mailbox textures.

content/common/gpu/gpu_channel_manager.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/common/gpu/gpu_channel_manager.h"
 
+#include <utility>
+
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/common/child_thread.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_memory_manager.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/sync_point_manager.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
@@ skipping 81 matching lines @@
   bool msg_is_ok = true;
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(GpuChannelManager, msg, msg_is_ok)
     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
                         OnCreateViewCommandBuffer)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateImage, OnCreateImage)
     IPC_MESSAGE_HANDLER(GpuMsg_DeleteImage, OnDeleteImage)
     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
+    IPC_MESSAGE_HANDLER(GpuMsg_DestroySurface, OnDestroySurface)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
 }
 
 bool GpuChannelManager::Send(IPC::Message* msg) {
   return gpu_child_thread_->Send(msg);
 }
 
 void GpuChannelManager::OnEstablishChannel(int client_id, bool share_context) {
@@ skipping 134 matching lines @@
     delete image_operations_.front();
     image_operations_.pop_front();
   }
 }
 
 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
   if (program_cache())
     program_cache()->LoadProgram(program_proto);
 }
 
+void GpuChannelManager::OnDestroySurface(int client_id,
+                                         int route_id,
+                                         int surface_id) {
+  if (mailbox_manager_) {
+    GpuChannel* channel = LookupChannel(client_id);
+    if (channel)
+      channel->OnDestroySurface(route_id, surface_id);
+  }
+}
+
 bool GpuChannelManager::HandleMessagesScheduled() {
   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
        iter != gpu_channels_.end(); ++iter) {
     if (iter->second->handle_messages_scheduled())
       return true;
   }
   return false;
 }
 
 uint64 GpuChannelManager::MessagesProcessed() {
@@ skipping 19 matching lines @@
 
 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
   if (!default_offscreen_surface_.get()) {
     default_offscreen_surface_ = gfx::GLSurface::CreateOffscreenGLSurface(
         false, gfx::Size(1, 1));
   }
   return default_offscreen_surface_.get();
 }
 
 }  // namespace content