In screenshare mode, suppress VP8 bitrate overshoot and increase quality

talk/media/webrtc/webrtcvideoengine2_unittest.cc

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 1420 matching lines @@
 
   EXPECT_EQ(capture_format_hd.width, encoder_config.streams.front().width);
   EXPECT_EQ(capture_format_hd.height, encoder_config.streams.front().height);
   EXPECT_TRUE(encoder_config.streams[0].temporal_layer_thresholds_bps.empty());
 
   EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
 }
 
 TEST_F(WebRtcVideoChannel2Test,
        ConferenceModeScreencastConfiguresTemporalLayer) {
-  static const int kConferenceScreencastTemporalBitrateBps = 100000;
+  static const int kConferenceScreencastTemporalBitrateBps =
+      ScreenshareLayerConfig::GetDefault().tl0_bitrate_kbps * 1000;
   VideoOptions options;
   options.conference_mode.Set(true);
   channel_->SetOptions(options);
 
   AddSendStream();
 
   cricket::FakeVideoCapturer capturer;
   capturer.SetScreencast(true);
   EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
   cricket::VideoFormat capture_format_hd =
@@ skipping 1572 matching lines @@
 // Ensures that the correct settings are applied to the codec when two temporal
 // layer screencasting is enabled, and that the correct simulcast settings are
 // reapplied when disabling screencasting.
 TEST_F(WebRtcVideoChannel2SimulcastTest,
        DISABLED_TwoTemporalLayerScreencastSettings) {
   // TODO(pbos): Implement.
   FAIL() << "Not implemented.";
 }
 
 }  // namespace cricket