getUserMeida: report device starting states

content/browser/media/capture/desktop_capture_device_unittest.cc

 // Copyright (c) 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/media/capture/desktop_capture_device.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <algorithm>
@@ skipping 57 matching lines @@
                     base::TimeTicks reference_time,
                     base::TimeDelta timestamp,
                     int frame_feedback_id));
   MOCK_METHOD0(DoReserveOutputBuffer, void(void));
   MOCK_METHOD0(DoOnIncomingCapturedBuffer, void(void));
   MOCK_METHOD0(DoOnIncomingCapturedVideoFrame, void(void));
   MOCK_METHOD0(DoResurrectLastOutputBuffer, void(void));
   MOCK_METHOD2(OnError,
                void(const tracked_objects::Location& from_here,
                     const std::string& reason));
+  MOCK_METHOD0(OnStarted, void(void));

[miu, 2017/02/09 22:21:49]

ditto: One or more unit tests should EXPECT_CALL(OnStarted()).

[braveyao, 2017/02/14 01:05:49]

Done.

 
   // Trampoline methods to workaround GMOCK problems with std::unique_ptr<>.
   Buffer ReserveOutputBuffer(const gfx::Size& dimensions,
                              media::VideoPixelFormat format,
                              media::VideoPixelStorage storage,
                              int frame_feedback_id) override {
     EXPECT_TRUE(format == media::PIXEL_FORMAT_I420 &&
                 storage == media::PIXEL_STORAGE_CPU);
     DoReserveOutputBuffer();
     return Buffer();
@@ skipping 468 matching lines @@
             frame_size);
   for (int i = 0; i < output_frame_->size().height(); ++i) {
     EXPECT_EQ(0,
         memcmp(inverted_frame->data() + i * inverted_frame->stride(),
                output_frame_->data() + i * output_frame_->stride(),
                output_frame_->stride()));
   }
 }
 
 }  // namespace content