Refactor SkyShell to allow multiple SkyViews

sky/shell/shell.cc

 // Copyright 2015 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 "sky/shell/shell.h"
 
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
 #include "mojo/common/message_pump_mojo.h"
 #include "mojo/edk/embedder/embedder.h"
 #include "mojo/edk/embedder/simple_platform_support.h"
-#include "sky/shell/platform_view.h"
-#include "sky/shell/gpu/rasterizer.h"
 #include "sky/shell/ui/engine.h"
 
 namespace sky {
 namespace shell {
 namespace {
 
 static Shell* g_shell = nullptr;
 
 scoped_ptr<base::MessagePump> CreateMessagePumpMojo() {
   return make_scoped_ptr(new mojo::common::MessagePumpMojo);
 }
 
 }  // namespace
 
 Shell::Shell(scoped_ptr<ServiceProviderContext> service_provider_context)
     : service_provider_context_(service_provider_context.Pass()) {
   DCHECK(!g_shell);
   mojo::embedder::Init(scoped_ptr<mojo::embedder::PlatformSupport>(
       new mojo::embedder::SimplePlatformSupport()));
 
   base::Thread::Options options;
   options.message_pump_factory = base::Bind(&CreateMessagePumpMojo);
 
-  InitGPU(options);
-  InitUI(options);
-  InitView();
+  gpu_thread_.reset(new base::Thread("gpu_thread"));
+  gpu_thread_->StartWithOptions(options);
+
+  ui_thread_.reset(new base::Thread("ui_thread"));
+  ui_thread_->StartWithOptions(options);
+
+  ui_task_runner()->PostTask(
+      FROM_HERE, base::Bind(&Engine::Init, service_provider_context_.get()));
 }
 
 Shell::~Shell() {
 }
 
 void Shell::Init(scoped_ptr<ServiceProviderContext> service_provider_context) {
   g_shell = new Shell(service_provider_context.Pass());
 }
 
 Shell& Shell::Shared() {
   DCHECK(g_shell);
   return *g_shell;
 }
 
-void Shell::InitGPU(const base::Thread::Options& options) {
-  gpu_thread_.reset(new base::Thread("gpu_thread"));
-  gpu_thread_->StartWithOptions(options);
-
-  rasterizer_.reset(new Rasterizer());
-}
-
-void Shell::InitUI(const base::Thread::Options& options) {
-  ui_thread_.reset(new base::Thread("ui_thread"));
-  ui_thread_->StartWithOptions(options);
-
-  Engine::Config config;
-  config.service_provider_context = service_provider_context_.get();
-  config.gpu_task_runner = gpu_thread_->message_loop()->task_runner();
-  config.gpu_delegate = rasterizer_->GetWeakPtr();
-  engine_.reset(new Engine(config));
-
-  ui_thread_->message_loop()->PostTask(
-      FROM_HERE, base::Bind(&Engine::Init, engine_->GetWeakPtr()));
-}
-
-void Shell::InitView() {
-  PlatformView::Config config;
-  config.ui_task_runner = ui_thread_->message_loop()->task_runner();
-  config.ui_delegate = engine_->GetWeakPtr();
-  view_.reset(new PlatformView(config));
-}
-
 }  // namespace shell
 }  // namespace sky