AppShell support for Mac.

extensions/shell/browser/shell_desktop_controller_mac.mm

+// Copyright 2014 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 "extensions/shell/browser/shell_desktop_controller_mac.h"
+
+#include "extensions/browser/app_window/native_app_window.h"
+#include "extensions/shell/browser/shell_app_window_client.h"
+#include "extensions/shell/browser/shell_app_delegate.h"
+#include "ui/gfx/display.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gfx/screen.h"
+
+namespace extensions {
+
+ShellDesktopControllerMac::ShellDesktopControllerMac()
+    : app_window_client_(new ShellAppWindowClient), app_window_(NULL) {
+  extensions::AppWindowClient::Set(app_window_client_.get());

[James Cook, 2014/12/10 21:05:01]

nit: no extensions::

[Yoyo Zhou, 2014/12/11 02:40:50]

Done.

+}
+
+ShellDesktopControllerMac::~ShellDesktopControllerMac() {
+  // TOOD(yoz): This is actually too late to close app windows (for tests).
+  // Maybe this is useful for non-tests.
+  CloseAppWindows();
+}
+
+gfx::Size ShellDesktopControllerMac::GetWindowSize() {
+  // This is the full screen size.
+  return gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().bounds().size();
+}
+
+AppWindow* ShellDesktopControllerMac::CreateAppWindow(
+    content::BrowserContext* context,
+    const Extension* extension) {
+  app_window_ = new AppWindow(context, new ShellAppDelegate, extension);
+  return app_window_;
+}
+
+void ShellDesktopControllerMac::AddAppWindow(gfx::NativeWindow window) {
+}
+
+void ShellDesktopControllerMac::RemoveAppWindow(AppWindow* window) {
+}
+
+void ShellDesktopControllerMac::CloseAppWindows() {
+  if (app_window_) {
+    ui::BaseWindow* window = app_window_->GetBaseWindow();
+    window->Close();  // Close() deletes |app_window_|.
+    app_window_ = NULL;
+  }
+}
+
+}  // namespace extensions