[Chromoting] Add a unit test to verify that the VP8 codec doesn't change color values too much.

remoting/base/decoder_vp8_unittest.cc

 // Copyright (c) 2010 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 "media/base/video_frame.h"
 #include "remoting/base/codec_test.h"
 #include "remoting/base/decoder_vp8.h"
 #include "remoting/base/encoder_vp8.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace remoting {
 
 TEST(DecoderVp8Test, EncodeAndDecode) {
   EncoderVp8 encoder;
   DecoderVp8 decoder;
   TestEncoderDecoder(&encoder, &decoder, false);
 }
 
+TEST(DecoderVp8Test, Gradient) {

[Sergey Ulanov, 2012/07/27 02:55:01]

add short description of the purpose of that test.

[simonmorris, 2012/07/27 16:42:24]

Done.

+  EncoderVp8 encoder;
+  DecoderVp8 decoder;
+  TestEncoderDecoderGradient(&encoder, &decoder, 0.03, 0.01);
+}
+
 }  // namespace remoting