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/audio_coding/neteq/time_stretch_unittest.cc

@@ -34,8 +34,8 @@ TEST(TimeStretch, CreateAndDestroy) {
   const int kOverlapSamples = 5 * kSampleRate / 8000;
   BackgroundNoise bgn(kNumChannels);
   Accelerate accelerate(kSampleRate, kNumChannels, bgn);
-  PreemptiveExpand preemptive_expand(
-      kSampleRate, kNumChannels, bgn, kOverlapSamples);
+  PreemptiveExpand preemptive_expand(kSampleRate, kNumChannels, bgn,
+                                     kOverlapSamples);
 }
 
 TEST(TimeStretch, CreateUsingFactory) {