Added implementation of three classes in BBR,with unit-tests.

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

 /*
  *  Copyright (c) 2017 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 "webrtc/modules/remote_bitrate_estimator/test/estimators/max_bandwidth_filter.h"
 
 #include "webrtc/test/gtest.h"
 
 namespace webrtc {
 namespace testing {
 namespace bwe {
 TEST(MaxBandwidthFilterTest, InitializationCheck) {
   MaxBandwidthFilter max_bandwidth_filter;
-  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bytes_per_ms(), 0);
+  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bps(), 0);
 }
 
 TEST(MaxBandwidthFilterTest, AddOneBandwidthSample) {
   MaxBandwidthFilter max_bandwidth_filter;
   max_bandwidth_filter.AddBandwidthSample(13, 4, 10);
-  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bytes_per_ms(), 13);
+  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bps(), 13);
 }
 
 TEST(MaxBandwidthFilterTest, AddSeveralBandwidthSamples) {
   MaxBandwidthFilter max_bandwidth_filter;
   max_bandwidth_filter.AddBandwidthSample(10, 5, 10);
   max_bandwidth_filter.AddBandwidthSample(13, 6, 10);
-  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bytes_per_ms(), 13);
+  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bps(), 13);
 }
 
 TEST(MaxBandwidthFilterTest, SampleTimeOut) {
   MaxBandwidthFilter max_bandwidth_filter;
   max_bandwidth_filter.AddBandwidthSample(13, 5, 10);
   max_bandwidth_filter.AddBandwidthSample(10, 15, 10);
-  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bytes_per_ms(), 10);
+  EXPECT_EQ(max_bandwidth_filter.max_bandwidth_estimate_bps(), 10);
 }
 
 TEST(MaxBandwidthFilterTest, FullBandwidthReached) {
   MaxBandwidthFilter max_bandwidth_filter;
   max_bandwidth_filter.AddBandwidthSample(100, 1, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(110, 2, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(120, 3, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(124, 4, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), true);
 }
 
 TEST(MaxBandwidthFilterTest, FullBandwidthNotReached) {
   MaxBandwidthFilter max_bandwidth_filter;
   max_bandwidth_filter.AddBandwidthSample(100, 1, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(110, 2, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(120, 3, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
   max_bandwidth_filter.AddBandwidthSample(125, 4, 10);
   EXPECT_EQ(max_bandwidth_filter.FullBandwidthReached(1.25f, 3), false);
 }
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc