Connect to DesktopEnvironment's stubs only when audio/video schedulers are about to be created.

remoting/capturer/video_frame_capturer_fake.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/capturer/video_frame_capturer_fake.h"
 
 #include "base/time.h"
 #include "remoting/capturer/capture_data.h"
 
 namespace remoting {
 
 // VideoFrameCapturerFake generates a white picture of size kWidth x kHeight
 // with a rectangle of size kBoxWidth x kBoxHeight. The rectangle moves kSpeed
 // pixels per frame along both axes, and bounces off the sides of the screen.
-static const int kWidth = 800;
-static const int kHeight = 600;
+static const int kWidth = VideoFrameCapturerFake::kWidth;
+static const int kHeight = VideoFrameCapturerFake::kHeight;
 static const int kBoxWidth = 140;
 static const int kBoxHeight = 140;
 static const int kSpeed = 20;
 
 COMPILE_ASSERT(kBoxWidth < kWidth && kBoxHeight < kHeight, bad_box_size);
 COMPILE_ASSERT((kBoxWidth % kSpeed == 0) && (kWidth % kSpeed == 0) &&
                (kBoxHeight % kSpeed == 0) && (kHeight % kSpeed == 0),
                sizes_must_be_multiple_of_kSpeed);
 
 VideoFrameCapturerFake::VideoFrameCapturerFake()
@@ skipping 85 matching lines @@
   bytes_per_row_ = size_.width() * CaptureData::kBytesPerPixel;
 
   // Create memory for the buffers.
   int buffer_size = size_.height() * bytes_per_row_;
   for (int i = 0; i < kNumBuffers; i++) {
     buffers_[i].reset(new uint8[buffer_size]);
   }
 }
 
 }  // namespace remoting