content/gpu: Simplify gpu channel message handling.

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 <algorithm>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 89 matching lines @@
 }
 
 void GpuChannelManager::AddRoute(int32 routing_id, IPC::Listener* listener) {
   router_.AddRoute(routing_id, listener);
 }
 
 void GpuChannelManager::RemoveRoute(int32 routing_id) {
   router_.RemoveRoute(routing_id);
 }
 
-GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
+GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) const {
   const auto& it = gpu_channels_.find(client_id);
   return it != gpu_channels_.end() ? it->second : nullptr;
 }
 
 bool GpuChannelManager::OnControlMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
@@ skipping 123 matching lines @@
   auto it = gpu_channels_.find(client_id);
   if (it != gpu_channels_.end())
     it->second->HandleUpdateValueState(target, state);
 }
 
 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
   if (program_cache())
     program_cache()->LoadProgram(program_proto);
 }
 
-uint32_t GpuChannelManager::ProcessedOrderNumber() {
-  uint32_t processed_order_num = 0;
-  for (auto& kv : gpu_channels_) {
-    processed_order_num =
-        std::max(processed_order_num, kv.second->GetProcessedOrderNum());
-  }
-  return processed_order_num;
-}
-
-uint32_t GpuChannelManager::UnprocessedOrderNumber() {
+uint32_t GpuChannelManager::GetUnprocessedOrderNum() const {
   uint32_t unprocessed_order_num = 0;
   for (auto& kv : gpu_channels_) {
     unprocessed_order_num =
         std::max(unprocessed_order_num, kv.second->GetUnprocessedOrderNum());
   }
   return unprocessed_order_num;
 }
 
+uint32_t GpuChannelManager::GetProcessedOrderNum() const {
+  uint32_t processed_order_num = 0;
+  for (auto& kv : gpu_channels_) {
+    processed_order_num =
+        std::max(processed_order_num, kv.second->GetProcessedOrderNum());
+  }
+  return processed_order_num;
+}
+
 void GpuChannelManager::LoseAllContexts() {
   for (auto& kv : gpu_channels_) {
     kv.second->MarkAllContextsLost();
   }
   task_runner_->PostTask(FROM_HERE,
                          base::Bind(&GpuChannelManager::OnLoseAllContexts,
                                     weak_factory_.GetWeakPtr()));
 }
 
 void GpuChannelManager::OnLoseAllContexts() {
   gpu_channels_.clear();
 }
 
 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
   if (!default_offscreen_surface_.get()) {
     default_offscreen_surface_ =
         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
   }
   return default_offscreen_surface_.get();
 }
 
 }  // namespace content