Make LoadObserver settable per video send stream. Gives client flexibility and makes the implementa…

webrtc/video/call_perf_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>
@@ skipping 470 matching lines @@
     LoadObserver(LoadObserver::Load tested_load, int encode_delay_ms)
         : SendTest(kLongTimeoutMs),
           tested_load_(tested_load),
           encoder_(Clock::GetRealTimeClock(), encode_delay_ms) {}
 
     void OnLoadUpdate(Load load) override {
       if (load == tested_load_)
         observation_complete_->Set();
     }
 
-    Call::Config GetSenderCallConfig() override {
-      Call::Config config;
-      config.overuse_callback = this;
-      return config;
-    }
-
     void ModifyConfigs(VideoSendStream::Config* send_config,
                        std::vector<VideoReceiveStream::Config>* receive_configs,
                        VideoEncoderConfig* encoder_config) override {
+      send_config->overuse_callback = this;
       send_config->encoder_settings.encoder = &encoder_;
     }
 
     void PerformTest() override {
       EXPECT_EQ(kEventSignaled, Wait())
           << "Timed out before receiving an overuse callback.";
     }
 
     LoadObserver::Load tested_load_;
     test::DelayedEncoder encoder_;
@@ skipping 194 matching lines @@
     int encoder_inits_;
     uint32_t last_set_bitrate_;
     VideoSendStream* send_stream_;
     VideoEncoderConfig encoder_config_;
   } test;
 
   RunBaseTest(&test);
 }
 
 }  // namespace webrtc