Implement a salt for MediaSource IDs that can be cleared by a user.

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/message_loop.h"
 #include "base/run_loop.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/media_stream_requester.h"
 #include "content/browser/renderer_host/media/media_stream_ui_proxy.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/test/mock_resource_context.h"
+#include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
+#include "content/test/test_content_browser_client.h"
 #include "media/audio/audio_manager.h"
 #include "media/base/video_frame.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;
@@ skipping 200 matching lines @@
 // MediaStreamManager, VideoCaptureManager, VideoCaptureController, and
 // VideoCaptureDevice.
 class VideoCaptureHostTest : public testing::Test {
  public:
   VideoCaptureHostTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
         message_loop_(base::MessageLoopProxy::current()),
         opened_session_id_(kInvalidMediaCaptureSessionId) {}
 
   virtual void SetUp() OVERRIDE {
+    SetBrowserClientForTesting(&browser_client_);
     // Create our own MediaStreamManager.
     audio_manager_.reset(media::AudioManager::Create());
     media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
 #ifndef TEST_REAL_CAPTURE_DEVICE
     media_stream_manager_->UseFakeDevice();
 #endif
     media_stream_manager_->UseFakeUI(scoped_ptr<FakeMediaStreamUIProxy>());
 
     // Create a Host and connect it to a simulated IPC channel.
     host_ = new MockVideoCaptureHost(media_stream_manager_.get());
@@ skipping 27 matching lines @@
     ASSERT_TRUE(opened_device_label_.empty());
 
     // Enumerate video devices.
     StreamDeviceInfoArray devices;
     {
       base::RunLoop run_loop;
       std::string label = media_stream_manager_->EnumerateDevices(
           &stream_requester_,
           render_process_id,
           render_view_id,
+          browser_context_.GetResourceContext(),
           page_request_id,
           MEDIA_DEVICE_VIDEO_CAPTURE,
           security_origin);
       EXPECT_CALL(stream_requester_, DevicesEnumerated(label, _))
           .Times(1).WillOnce(
               DoAll(ExitMessageLoop(message_loop_, run_loop.QuitClosure()),
                     SaveArg<1>(&devices)));
       run_loop.Run();
       Mock::VerifyAndClearExpectations(&stream_requester_);
       media_stream_manager_->CancelRequest(label);
     }
     ASSERT_FALSE(devices.empty());
     ASSERT_EQ(StreamDeviceInfo::kNoId, devices[0].session_id);
 
     // Open the first device.
     {
       base::RunLoop run_loop;
       StreamDeviceInfo opened_device;
       opened_device_label_ = media_stream_manager_->OpenDevice(
           &stream_requester_,
           render_process_id,
           render_view_id,
+          browser_context_.GetResourceContext(),
           page_request_id,
           devices[0].device.id,
           MEDIA_DEVICE_VIDEO_CAPTURE,
           security_origin);
       EXPECT_CALL(stream_requester_, DeviceOpened(opened_device_label_, _))
           .Times(1).WillOnce(
               DoAll(ExitMessageLoop(message_loop_, run_loop.QuitClosure()),
                     SaveArg<1>(&opened_device)));
       run_loop.Run();
       Mock::VerifyAndClearExpectations(&stream_requester_);
@@ skipping 103 matching lines @@
     base::RunLoop().RunUntilIdle();
   }
 
   scoped_refptr<MockVideoCaptureHost> host_;
 
  private:
   StrictMock<MockMediaStreamRequester> stream_requester_;
   scoped_ptr<media::AudioManager> audio_manager_;
   scoped_ptr<MediaStreamManager> media_stream_manager_;
   content::TestBrowserThreadBundle thread_bundle_;
+  content::TestBrowserContext browser_context_;
+  content::TestContentBrowserClient browser_client_;
   scoped_refptr<base::MessageLoopProxy> message_loop_;
   int opened_session_id_;
   std::string opened_device_label_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHostTest);
 };
 
 TEST_F(VideoCaptureHostTest, CloseSessionWithoutStopping) {
   StartCapture();
 
@@ skipping 35 matching lines @@
 #ifdef DUMP_VIDEO
 TEST_F(VideoCaptureHostTest, CaptureAndDumpVideoVga) {
   CaptureAndDumpVideo(640, 480, 30);
 }
 TEST_F(VideoCaptureHostTest, CaptureAndDump720P) {
   CaptureAndDumpVideo(1280, 720, 30);
 }
 #endif
 
 }  // namespace content