Refactor SkyShell to allow multiple SkyViews

sky/shell/shell_view.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_view.h"
+
+#include "base/bind.h"
+#include "base/single_thread_task_runner.h"
+#include "sky/shell/gpu/rasterizer.h"
+#include "sky/shell/platform_view.h"
+#include "sky/shell/shell.h"
+#include "sky/shell/ui/engine.h"
+
+namespace sky {
+namespace shell {
+
+ShellView::ShellView(Shell& shell)
+    : shell_(shell) {
+  rasterizer_.reset(new Rasterizer());
+  CreateEngine();
+  CreatePlatformView();
+}
+
+ShellView::~ShellView() {
+}
+
+void ShellView::CreateEngine() {
+  Engine::Config config;
+  config.service_provider_context = shell_.service_provider_context();
+  config.gpu_task_runner = shell_.gpu_task_runner();
+  config.gpu_delegate = rasterizer_->GetWeakPtr();
+  engine_.reset(new Engine(config));
+}
+
+void ShellView::CreatePlatformView() {
+  PlatformView::Config config;
+  config.ui_task_runner = shell_.ui_task_runner();
+  config.ui_delegate = engine_->GetWeakPtr();
+  view_.reset(PlatformView::Create(config));
+}
+
+}  // namespace shell
+}  // namespace sky