Sort #includes that got unsorted when gmock.h and gtest.h moved to webrtc/test/

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 4b298cc152107b2f4234dd8084a2c7cbdf9e7ea8..6f269a4e8c6d298e6f0a3d4116425aef872710b4 100644
--- a/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
+++ b/webrtc/modules/bitrate_controller/bitrate_controller_unittest.cc
@@ -11,13 +11,12 @@
 #include <algorithm>
 #include <vector>
 
-#include "webrtc/test/gtest.h"
-
 #include "webrtc/call/mock/mock_rtc_event_log.h"
 #include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
 #include "webrtc/modules/pacing/mock/mock_paced_sender.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 #include "webrtc/test/field_trial.h"
+#include "webrtc/test/gtest.h"
 
 using ::testing::Exactly;
 using ::testing::Return;