In screenshare mode, suppress VP8 bitrate overshoot and increase quality

webrtc/video/full_stack.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <stdio.h>
@@ skipping 631 matching lines @@
   foreman_cif.link.link_capacity_kbps = 1000;
   RunTest(foreman_cif);
 }
 
 TEST_F(FullStackTest, ScreenshareSlides) {
   FullStackTestParams screenshare_params = {
       "screenshare_slides",
       {"screenshare_slides", 1850, 1110, 5},
       true,
       50000,
-      100000,
-      1000000,
+      200000,
+      2000000,
       0.0,
       0.0,
       kFullStackTestDurationSecs};
   RunTest(screenshare_params);
 }
 }  // namespace webrtc