Remove bitrate cap for AdaptiveVideoSource and increase other caps to 25 Mbps.

webrtc/modules/remote_bitrate_estimator/test/estimators/nada_unittest.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 210 matching lines @@
   nada_sender_.AcceleratedRampDown(congested_fb);
   int bitrate_2_kbps =
       std::max(nada_sender_.bitrate_kbps(), NadaBweSender::kMinNadaBitrateKbps);
   EXPECT_EQ(bitrate_2_kbps, bitrate_1_kbps);
 }
 
 TEST_F(NadaSenderSideTest, GradualRateUpdate) {
   const int64_t kDeltaSMs = 20;
   const int64_t kRefSignalMs = 20;
   const int64_t kOneWayDelayMs = 50;
-  int original_bitrate = 2 * NadaBweSender::kMinNadaBitrateKbps;
+  int original_bitrate = 5 * NadaBweSender::kMinNadaBitrateKbps;
   size_t receiving_rate = static_cast<size_t>(original_bitrate);
   int64_t send_time_ms = nada_sender_.NowMs() - kOneWayDelayMs;
 
   NadaFeedback congested_fb =
       NadaFbGenerator::CongestedFb(receiving_rate, send_time_ms);
   NadaFeedback not_congested_fb = NadaFbGenerator::NotCongestedFb(
       original_bitrate, kRefSignalMs, send_time_ms);
 
   nada_sender_.set_bitrate_kbps(original_bitrate);
   double smoothing_factor = 0.0;
@@ skipping 247 matching lines @@
   for (int i = 1; i < kNumElements; ++i) {
     EXPECT_EQ(
         exp_smoothed[i],
         static_cast<int64_t>(exp_smoothed[i - 1] * (1.0f - kAlpha) + 0.5f));
   }
 }
 
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc