Simplify ScreenCapturer interface.

remoting/host/video_scheduler_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 "remoting/host/video_scheduler.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "media/video/capture/screen/screen_capture_data.h"
@@ skipping 169 matching lines @@
       .WillRepeatedly(FinishSend());
 
   // For the first time when ProcessVideoPacket is received we stop the
   // VideoScheduler.
   EXPECT_CALL(video_stub_, ProcessVideoPacketPtr(_, _))
       .WillOnce(DoAll(
           FinishSend(),
           InvokeWithoutArgs(this, &VideoSchedulerTest::StopVideoScheduler)))
       .RetiresOnSaturation();
 
-  EXPECT_CALL(*capturer, Stop())
-      .After(capturer_capture)
-      .WillOnce(Invoke(this, &VideoSchedulerTest::OnCapturerStop));
-
   // Start video frame capture.
   StartVideoScheduler(capturer.PassAs<media::ScreenCapturer>());
 
   task_runner_ = NULL;
   run_loop_.Run();
 }
 
 }  // namespace remoting