Migrate GpuProcess to use MojoChild/ShellConnection for the Shell handshake

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 13 matching lines @@
 #include "base/threading/thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/tracing/common/tracing_switches.h"
 #include "content/browser/browser_child_process_host_impl.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/gpu/shader_disk_cache.h"
-#include "content/browser/mojo/mojo_application_host.h"
+#include "content/browser/mojo/constants.h"
+#include "content/browser/mojo/mojo_child_connection.h"
+#include "content/browser/mojo/mojo_shell_context.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/common/establish_channel_params.h"
 #include "content/common/gpu_host_messages.h"
 #include "content/common/in_process_child_thread_params.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/gpu_utils.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/render_widget_host_view_frame_subscriber.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/mojo_channel_switches.h"
+#include "content/public/common/mojo_shell_connection.h"
 #include "content/public/common/result_codes.h"
 #include "content/public/common/sandbox_type.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_switches.h"
 #include "ipc/message_filter.h"
 #include "media/base/media_switches.h"
 #include "mojo/edk/embedder/embedder.h"
+#include "services/shell/public/cpp/connection.h"
 #include "services/shell/public/cpp/interface_provider.h"
 #include "services/shell/public/cpp/interface_registry.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/events/latency_info.h"
 #include "ui/gl/gl_switches.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/build_info.h"
 #endif
 
@@ skipping 475 matching lines @@
 
 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())
     return false;
 
-  DCHECK(!mojo_application_host_);
-  mojo_application_host_.reset(new MojoApplicationHost(child_token_));
+  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_application_host_->GetToken()),
+            mojo_child_connection_->shell_client_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);
@@ skipping 341 matching lines @@
 }
 
 void GpuProcessHost::OnProcessCrashed(int exit_code) {
   SendOutstandingReplies();
   RecordProcessCrash();
   GpuDataManagerImpl::GetInstance()->ProcessCrashed(
       process_->GetTerminationStatus(true /* known_dead */, NULL));
 }
 
 shell::InterfaceRegistry* GpuProcessHost::GetInterfaceRegistry() {
-  return mojo_application_host_->interface_registry();
+  return mojo_child_connection_->connection()->GetInterfaceRegistry();
 }
 
 shell::InterfaceProvider* GpuProcessHost::GetRemoteInterfaces() {
-  return mojo_application_host_->remote_interfaces();
+  return mojo_child_connection_->connection()->GetRemoteInterfaces();
 }
 
 GpuProcessHost::GpuProcessKind GpuProcessHost::kind() {
   return kind_;
 }
 
 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)
@@ skipping 37 matching lines @@
 
   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::kMojoApplicationChannelToken,
-                              mojo_application_host_->GetToken());
+                              mojo_child_connection_->shell_client_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);
 
   // TODO(penghuang): Replace all GPU related switches with GpuPreferences.
@@ skipping 173 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