Begin adding support for tab mirroring via the MediaStream audio/video capturing

content/browser/renderer_host/media/video_capture_host_unittest.cc

 // Copyright (c) 2012 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 <map>
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/stl_util.h"
 #include "base/stringprintf.h"
 #include "content/browser/browser_thread_impl.h"
-#include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/video_capture_host.h"
 #include "content/browser/renderer_host/media/video_capture_manager.h"
 #include "content/common/media/video_capture_messages.h"
+#include "content/public/common/media_stream_request.h"
 #include "content/public/test/mock_resource_context.h"
-#include "media/audio/audio_manager.h"
 #include "media/video/capture/video_capture_types.h"
 #include "net/url_request/url_request_context.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::AnyNumber;
 using ::testing::DoAll;
 using ::testing::InSequence;
@@ skipping 106 matching lines @@
       IPC_MESSAGE_HANDLER(VideoCaptureMsg_DeviceInfo, OnDeviceInfoDispatch)
       IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
     EXPECT_TRUE(handled);
 
     delete message;
     return true;
   }
 
   virtual media_stream::VideoCaptureManager* GetVideoCaptureManager() OVERRIDE {
-    return manager_->video_capture_manager();
+    return manager_->GetVideoCaptureManager(content::MEDIA_USER_VIDEO_CAPTURE);
   }
 
   // These handler methods do minimal things and delegate to the mock methods.
   void OnNewBufferCreatedDispatch(int device_id,
                                   base::SharedMemoryHandle handle,
                                   int length, int buffer_id) {
     OnNewBufferCreated(device_id, handle, length, buffer_id);
     base::SharedMemory* dib = new base::SharedMemory(handle, false);
     dib->Map(length);
     filled_dib_[buffer_id] = dib;
@@ skipping 44 matching lines @@
  protected:
   virtual void SetUp() OVERRIDE {
     // Create a message loop so VideoCaptureHostTest can use it.
     message_loop_.reset(new MessageLoop(MessageLoop::TYPE_IO));
 
     // MediaStreamManager must be created on the IO thread.
     io_thread_.reset(new BrowserThreadImpl(BrowserThread::IO,
                                            message_loop_.get()));
 
     // Create our own MediaStreamManager.
-    audio_manager_.reset(media::AudioManager::Create());
-    scoped_refptr<media_stream::AudioInputDeviceManager>
-        audio_input_device_manager(
-            new media_stream::AudioInputDeviceManager(audio_manager_.get()));
-    scoped_refptr<media_stream::VideoCaptureManager> video_capture_manager(
-        new media_stream::VideoCaptureManager());
-    media_stream_manager_.reset(new media_stream::MediaStreamManager(
-        audio_input_device_manager, video_capture_manager));
-
+    media_stream_manager_.reset(new media_stream::MediaStreamManager());
 #ifndef TEST_REAL_CAPTURE_DEVICE
     media_stream_manager_->UseFakeDevice();
 #endif
 
     host_ = new MockVideoCaptureHost(media_stream_manager_.get());
 
     // Simulate IPC channel connected.
     host_->OnChannelConnected(base::GetCurrentProcId());
   }
 
   virtual void TearDown() OVERRIDE {
     // Verifies and removes the expectations on host_ and
     // returns true iff successful.
     Mock::VerifyAndClearExpectations(host_);
 
     EXPECT_CALL(*host_, OnStateChanged(kDeviceId,
                                        video_capture::kStopped))
         .Times(AnyNumber());
 
     // Simulate closing the IPC channel.
     host_->OnChannelClosing();
 
     // Release the reference to the mock object. The object will be destructed
     // on message_loop_.
     host_ = NULL;
 
     // We need to continue running message_loop_ to complete all destructions.
     message_loop_->RunAllPending();
 
-    // Delete the IO message loop to delete the device thread,
-    // AudioInputDeviceManager and VideoCaptureManager.
+    // Delete the IO message loop.  This will cause the MediaStreamManager to be
+    // notified so it will stop its device thread and device managers.
     message_loop_.reset();
   }
 
   void StartCapture() {
     InSequence s;
     // 1. First - get info about the new resolution
     EXPECT_CALL(*host_, OnDeviceInfo(kDeviceId));
 
     // 2. Change state to started
     EXPECT_CALL(*host_, OnStateChanged(kDeviceId,
@@ skipping 81 matching lines @@
     host_->OnError(id);
     // Wait for the error callback.
     message_loop_->RunAllPending();
   }
 
   scoped_refptr<MockVideoCaptureHost> host_;
 
  private:
   scoped_ptr<MessageLoop> message_loop_;
   scoped_ptr<BrowserThreadImpl> io_thread_;
-  scoped_ptr<media::AudioManager> audio_manager_;
   scoped_ptr<media_stream::MediaStreamManager> media_stream_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHostTest);
 };
 
 TEST_F(VideoCaptureHostTest, StartCapture) {
   StartCapture();
 }
 
 TEST_F(VideoCaptureHostTest, StartCapturePlayStop) {
@@ skipping 21 matching lines @@
 }
 
 #ifdef DUMP_VIDEO
 TEST_F(VideoCaptureHostTest, CaptureAndDumpVideoVga) {
   CaptureAndDumpVideo(640, 480, 30);
 }
 TEST_F(VideoCaptureHostTest, CaptureAndDump720P) {
   CaptureAndDumpVideo(1280, 720, 30);
 }
 #endif