GN: Add video_engine_tests

webrtc/video/video_send_stream_tests.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 <algorithm>  // max
@@ skipping 2100 matching lines @@
   //      +-+-+-+-+-+-+-+-+
   //      |    P_DIFF     |  R times
   //      +-+-+-+-+-+-+-+-+
   void VerifySsData(const RTPVideoHeaderVP9& vp9) const {
     EXPECT_TRUE(vp9.ss_data_available);             // V
     EXPECT_EQ(vp9_settings_.numberOfSpatialLayers,  // N_S + 1
               vp9.num_spatial_layers);
     EXPECT_TRUE(vp9.spatial_layer_resolution_present);  // Y:1
     size_t expected_width = encoder_config_.streams[0].width;
     size_t expected_height = encoder_config_.streams[0].height;
-    for (int i = vp9.num_spatial_layers - 1; i >= 0; --i) {
+    for (int i = static_cast<int>(vp9.num_spatial_layers) - 1; i >= 0; --i) {
       EXPECT_EQ(expected_width, vp9.width[i]);    // WIDTH
       EXPECT_EQ(expected_height, vp9.height[i]);  // HEIGHT
       expected_width /= 2;
       expected_height /= 2;
     }
   }
 
   void CompareConsecutiveFrames(const RTPHeader& header,
                                 const RTPVideoHeader& video) const {
     const RTPVideoHeaderVP9& vp9 = video.codecHeader.VP9;
@@ skipping 164 matching lines @@
         observation_complete_.Set();
       }
     }
   } test;
 
   RunBaseTest(&test);
 }
 #endif  // !defined(RTC_DISABLE_VP9)
 
 }  // namespace webrtc