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/codecs/ilbc/decode.h

@@ -31,8 +31,8 @@ int WebRtcIlbcfix_DecodeImpl(
     const uint16_t* bytes,     /* (i) encoded signal bits */
     IlbcDecoder* iLBCdec_inst, /* (i/o) the decoder state
                                            structure */
-    int16_t mode               /* (i) 0: bad packet, PLC,
-                                      1: normal */
+    int16_t mode /* (i) 0: bad packet, PLC,
+                        1: normal */
     ) RTC_WARN_UNUSED_RESULT;
 
 #endif