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/utility/ivf_file_writer.cc

@@ -122,8 +122,7 @@ bool IvfFileWriter::InitFromFirstFrame(const EncodedImage& encoded_image,
   if (!WriteHeader())
     return false;
 
-  const char* codec_name =
-      CodecTypeToPayloadString(codec_type_);
+  const char* codec_name = CodecTypeToPayloadString(codec_type_);
   RTC_LOG(LS_WARNING) << "Created IVF file for codec data of type "
                       << codec_name << " at resolution " << width_ << " x "
                       << height_ << ", using "