Reformat the WebRTC code base

Running clang-format with chromium's style guide.

The goal is n-fold:
 * providing consistency and readability (that's what code guidelines are for)
 * preventing noise with presubmit checks and git cl format
 * building on the previous point: making it easier to automatically fix format issues
 * you name it

Please consider using git-hyper-blame to ignore this commit.

Bug: webrtc:9340
Change-Id: I694567c4cdf8cee2860958cfe82bfaf25848bb87
Reviewed-on: https://webrtc-review.googlesource.com/81185
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23660}

modules/video_processing/test/denoiser_test.cc

@@ -14,8 +14,8 @@
 
 #include "common_video/include/i420_buffer_pool.h"
 #include "modules/video_processing/video_denoiser.h"
-#include "test/gtest.h"
 #include "test/frame_utils.h"
+#include "test/gtest.h"
 #include "test/testsupport/fileutils.h"
 
 namespace webrtc {