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/test/TestStereo.h

@@ -23,11 +23,7 @@
 
 namespace webrtc {
 
-enum StereoMonoMode {
-  kNotSet,
-  kMono,
-  kStereo
-};
+enum StereoMonoMode { kNotSet, kMono, kStereo };
 
 class TestPackStereo : public AudioPacketizationCallback {
  public:
@@ -72,11 +68,17 @@ class TestStereo : public ACMTest {
   // The default value of '-1' indicates that the registration is based only on
   // codec name and a sampling frequncy matching is not required. This is useful
   // for codecs which support several sampling frequency.
-  void RegisterSendCodec(char side, char* codec_name, int32_t samp_freq_hz,
-                         int rate, int pack_size, int channels,
+  void RegisterSendCodec(char side,
+                         char* codec_name,
+                         int32_t samp_freq_hz,
+                         int rate,
+                         int pack_size,
+                         int channels,
                          int payload_type);
 
-  void Run(TestPackStereo* channel, int in_channels, int out_channels,
+  void Run(TestPackStereo* channel,
+           int in_channels,
+           int out_channels,
            int percent_loss = 0);
   void OpenOutFile(int16_t test_number);
   void DisplaySendReceiveCodec();