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}

video/video_stream_decoder_impl.cc

@@ -203,11 +203,10 @@ VideoStreamDecoderImpl::DecodeResult VideoStreamDecoderImpl::DecodeNextFrame(
               Add<kFrameTimestampsMemory>(next_frame_timestamps_index_, 1);
         });
 
-    int32_t decode_result =
-        decoder->Decode(frame->EncodedImage(),
-                        false,    // missing_frame
-                        nullptr,  // codec specific info
-                        frame->RenderTimeMs());
+    int32_t decode_result = decoder->Decode(frame->EncodedImage(),
+                                            false,    // missing_frame
+                                            nullptr,  // codec specific info
+                                            frame->RenderTimeMs());
 
     return decode_result == WEBRTC_VIDEO_CODEC_OK ? kOk : kDecodeFailure;
   }