aura: Allow creating content_shell without views.

content/shell/browser/shell_aura.h

+// Copyright 2013 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.
+
+#ifndef CONTENT_SHELL_BROWSER_SHELL_AURA_H_
+#define CONTENT_SHELL_BROWSER_SHELL_AURA_H_
+
+#include "base/memory/scoped_ptr.h"
+
+namespace aura {
+namespace client {
+class DefaultActivationClient;
+class DefaultCaptureClient;
+class FocusClient;
+}
+class RootWindow;
+}
+
+namespace ui {
+class EventHandler;
+}
+
+namespace content {
+
+class ShellAuraPlatformData {
+ public:
+  ShellAuraPlatformData();
+  ~ShellAuraPlatformData();
+
+  void CreateWindow(int width, int height);
+
+  aura::RootWindow* window() { return root_window_.get(); }
+
+ private:
+  scoped_ptr<aura::RootWindow> root_window_;
+  scoped_ptr<aura::client::FocusClient> focus_client_;
+  scoped_ptr<aura::client::DefaultActivationClient> activation_client_;
+  scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
+  scoped_ptr<ui::EventHandler> ime_filter_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellAuraPlatformData);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_BROWSER_SHELL_AURA_H_