Fix KeepsHighBitrateWhenReconfiguringSender to avoid flakiness if probing succeeds in between encod…

webrtc/call/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.
  */
 
@@ skipping 645 matching lines @@
                                         ? last_set_bitrate_kbps_
                                         : kInitialBitrateKbps;
         EXPECT_EQ(expected_bitrate, config->startBitrate)
             << "Encoder not initialized at expected bitrate.";
         EXPECT_EQ(kDefaultWidth, config->width);
         EXPECT_EQ(kDefaultHeight, config->height);
       } else if (encoder_inits_ == 2) {
         EXPECT_EQ(2 * kDefaultWidth, config->width);
         EXPECT_EQ(2 * kDefaultHeight, config->height);
         EXPECT_GE(last_set_bitrate_kbps_, kReconfigureThresholdKbps);
-        EXPECT_NEAR(config->startBitrate, last_set_bitrate_kbps_,
-                    kPermittedReconfiguredBitrateDiffKbps)
+        EXPECT_GT(
+            config->startBitrate,
+            last_set_bitrate_kbps_ - kPermittedReconfiguredBitrateDiffKbps)
             << "Encoder reconfigured with bitrate too far away from last set.";
         observation_complete_.Set();
       }
       return FakeEncoder::InitEncode(config, number_of_cores, max_payload_size);
     }
 
     int32_t SetRateAllocation(const BitrateAllocation& rate_allocation,
                               uint32_t framerate) override {
       last_set_bitrate_kbps_ = rate_allocation.get_sum_kbps();
       if (encoder_inits_ == 1 &&
@@ skipping 49 matching lines @@
     uint32_t last_set_bitrate_kbps_;
     VideoSendStream* send_stream_;
     test::FrameGeneratorCapturer* frame_generator_;
     VideoEncoderConfig encoder_config_;
   } test;
 
   RunBaseTest(&test);
 }
 
 }  // namespace webrtc