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/dtmf_buffer.h

@@ -28,19 +28,9 @@ struct DtmfEvent {
 
   // Constructors
   DtmfEvent()
-      : timestamp(0),
-        event_no(0),
-        volume(0),
-        duration(0),
-        end_bit(false) {
-  }
+      : timestamp(0), event_no(0), volume(0), duration(0), end_bit(false) {}
   DtmfEvent(uint32_t ts, int ev, int vol, int dur, bool end)
-      : timestamp(ts),
-        event_no(ev),
-        volume(vol),
-        duration(dur),
-        end_bit(end) {
-  }
+      : timestamp(ts), event_no(ev), volume(vol), duration(dur), end_bit(end) {}
 };
 
 // This is the buffer holding DTMF events while waiting for them to be played.