Re-land: Use ChannelMojo for the Browser-GPU IPC channel.

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 <stddef.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 541 matching lines @@
                           base::Bind(&GpuProcessHostUIShim::Destroy,
                                      host_id_,
                                      message));
 }
 
 bool GpuProcessHost::Init() {
   init_start_time_ = base::TimeTicks::Now();
 
   TRACE_EVENT_INSTANT0("gpu", "LaunchGpuProcess", TRACE_EVENT_SCOPE_THREAD);
 
-  std::string channel_id = process_->GetHost()->CreateChannel();
-  if (channel_id.empty())
+  const std::string mojo_channel_token =
+      process_->GetHost()->CreateChannelMojo(child_token_);
+  if (mojo_channel_token.empty())
     return false;
 
   DCHECK(!mojo_child_connection_);
   mojo_child_connection_.reset(new MojoChildConnection(
       kGpuMojoApplicationName,
       "",
       child_token_,
       MojoShellContext::GetConnectorForIOThread()));
 
   gpu::GpuPreferences gpu_preferences = GetGpuPreferencesFromCommandLine();
   if (in_process_) {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     DCHECK(g_gpu_main_thread_factory);
     in_process_gpu_thread_.reset(g_gpu_main_thread_factory(
         InProcessChildThreadParams(
-            channel_id, base::ThreadTaskRunnerHandle::Get(), std::string(),
-            mojo_child_connection_->service_token()),
+            std::string(), base::ThreadTaskRunnerHandle::Get(),
+            mojo_channel_token, mojo_child_connection_->service_token()),
         gpu_preferences));
     base::Thread::Options options;
 #if defined(OS_WIN)
     // WGL needs to create its own window and pump messages on it.
     options.message_loop_type = base::MessageLoop::TYPE_UI;
 #endif
 #if defined(OS_ANDROID) || defined(OS_CHROMEOS)
     options.priority = base::ThreadPriority::DISPLAY;
 #endif
     in_process_gpu_thread_->StartWithOptions(options);
 
     OnProcessLaunched();  // Fake a callback that the process is ready.
-  } else if (!LaunchGpuProcess(channel_id, &gpu_preferences)) {
+  } else if (!LaunchGpuProcess(mojo_channel_token, &gpu_preferences)) {
     return false;
   }
 
   if (!Send(new GpuMsg_Initialize(gpu_preferences)))
     return false;
 
   return true;
 }
 
 void GpuProcessHost::RouteOnUIThread(const IPC::Message& message) {
@@ skipping 352 matching lines @@
   if (g_gpu_process_hosts[kind_] == this)
     g_gpu_process_hosts[kind_] = NULL;
 
   process_->ForceShutdown();
 }
 
 void GpuProcessHost::StopGpuProcess() {
   Send(new GpuMsg_Finalize());
 }
 
-bool GpuProcessHost::LaunchGpuProcess(const std::string& channel_id,
+bool GpuProcessHost::LaunchGpuProcess(const std::string& mojo_channel_token,
                                       gpu::GpuPreferences* gpu_preferences) {
   if (!(gpu_enabled_ &&
       GpuDataManagerImpl::GetInstance()->ShouldUseSwiftShader()) &&
       !hardware_gpu_enabled_) {
     SendOutstandingReplies();
     return false;
   }
 
   const base::CommandLine& browser_command_line =
       *base::CommandLine::ForCurrentProcess();
@@ skipping 15 matching lines @@
   int child_flags = ChildProcessHost::CHILD_NORMAL;
 #endif
 
   base::FilePath exe_path = ChildProcessHost::GetChildPath(child_flags);
   if (exe_path.empty())
     return false;
 
   base::CommandLine* cmd_line = new base::CommandLine(exe_path);
 #endif
   cmd_line->AppendSwitchASCII(switches::kProcessType, switches::kGpuProcess);
-  cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id);
+  cmd_line->AppendSwitchASCII(switches::kMojoChannelToken, mojo_channel_token);
   cmd_line->AppendSwitchASCII(switches::kMojoApplicationChannelToken,
                               mojo_child_connection_->service_token());
   BrowserChildProcessHostImpl::CopyFeatureAndFieldTrialFlags(cmd_line);
 
 #if defined(OS_WIN)
   cmd_line->AppendArg(switches::kPrefetchArgumentGpu);
 #endif  // defined(OS_WIN)
 
   if (kind_ == GPU_PROCESS_KIND_UNSANDBOXED)
     cmd_line->AppendSwitch(switches::kDisableGpuSandbox);
@@ skipping 175 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content