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/video_coding/include/video_codec_interface.h

@@ -37,8 +37,8 @@ struct CodecSpecificInfoVP8 {
 
 struct CodecSpecificInfoVP9 {
   bool first_frame_in_picture;  // First frame, increment picture_id.
-  bool inter_pic_predicted;  // This layer frame is dependent on previously
-                             // coded frame(s).
+  bool inter_pic_predicted;     // This layer frame is dependent on previously
+                                // coded frame(s).
   bool flexible_mode;
   bool ss_data_available;
   bool non_ref_for_inter_layer_pred;