Set min BWE bitrate form 10kbps to 5kbps and centralize minimum bitrate.

webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc

Index: webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
diff --git a/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc b/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
index 6f269a4e8c6d298e6f0a3d4116425aef872710b4..a4858d40d0fc9d11b0a6d5383a0becd9276b9b83 100644
--- a/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
+++ b/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
@@ -13,8 +13,9 @@
 
 #include "webrtc/call/mock/mock_rtc_event_log.h"
 #include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
+#include "webrtc/modules/congestion_controller/include/defines.h"
 #include "webrtc/modules/pacing/mock/mock_paced_sender.h"
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "webrtc/modules/remote_bitrate_estimator/include/bwe_defines.h"

[stefan-webrtc, 2016/10/26 15:21:53]

Can we remove this?

[michaelt, 2016/10/27 13:29:25]

Yes.
Done

 #include "webrtc/test/field_trial.h"
 #include "webrtc/test/gtest.h"
 
@@ -98,7 +99,8 @@ TEST_F(BitrateControllerTest, DefaultMinMaxBitrate) {
   controller_->SetMinMaxBitrate(0, 0);
   EXPECT_EQ(kStartBitrateBps, bitrate_observer_.last_bitrate_);
   bandwidth_observer_->OnReceivedEstimatedBitrate(kDefaultMinBitrateBps / 2);
-  EXPECT_EQ(kDefaultMinBitrateBps, bitrate_observer_.last_bitrate_);
+  EXPECT_EQ(webrtc::congestion_controller::kMinBitrateBps,
+            bitrate_observer_.last_bitrate_);
   bandwidth_observer_->OnReceivedEstimatedBitrate(2 * kDefaultMaxBitrateBps);
   clock_.AdvanceTimeMilliseconds(1000);
   controller_->Process();