Extend content::DesktopMediaID to allow Aura windows as capture sources.

content/browser/renderer_host/media/desktop_capture_device_aura_unittest.cc

 // 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.
 
 #include "content/browser/renderer_host/media/desktop_capture_device_aura.h"
 
 #include "base/synchronization/waitable_event.h"
 #include "content/browser/browser_thread_impl.h"
+#include "content/public/browser/desktop_media_id.h"
 #include "media/video/capture/video_capture_types.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/aura/test/aura_test_helper.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/window.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
@@ skipping 66 matching lines @@
   base::MessageLoopForUI message_loop_;
   BrowserThreadImpl browser_thread_for_ui_;
   scoped_ptr<aura::test::AuraTestHelper> helper_;
   scoped_ptr<aura::Window> desktop_window_;
   scoped_ptr<aura::test::TestWindowDelegate> window_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopCaptureDeviceAuraTest);
 };
 
 TEST_F(DesktopCaptureDeviceAuraTest, StartAndStop) {
-  DesktopMediaID source(DesktopMediaID::TYPE_SCREEN, 0);
   scoped_ptr<media::VideoCaptureDevice> capture_device(
-      DesktopCaptureDeviceAura::Create(source));
+      DesktopCaptureDeviceAura::Create(
+          content::DesktopMediaID::RegisterAuraWindow(root_window())));
 
   scoped_ptr<MockDeviceClient> client(new MockDeviceClient());
   EXPECT_CALL(*client, OnError()).Times(0);
 
   media::VideoCaptureParams capture_params;
   capture_params.requested_format.frame_size.SetSize(640, 480);
   capture_params.requested_format.frame_rate = kFrameRate;
   capture_params.requested_format.pixel_format = media::PIXEL_FORMAT_I420;
   capture_params.allow_resolution_change = false;
   capture_device->AllocateAndStart(
       capture_params, client.PassAs<media::VideoCaptureDevice::Client>());
   capture_device->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content