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/acm2/acm_codec_database.h

@@ -31,7 +31,7 @@ class ACMCodecDB {
   //                 build.
   // kMaxNumPacketSize - Maximum number of allowed packet sizes for one codec.
   // These might need to be increased if adding a new codec to the database
-  static const int kMaxNumCodecs =  50;
+  static const int kMaxNumCodecs = 50;
   static const int kMaxNumPacketSize = 6;
 
   // Codec specific settings