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}
diff --git a/sdk/objc/Framework/Headers/WebRTC/RTCMTLVideoView.h b/sdk/objc/Framework/Headers/WebRTC/RTCMTLVideoView.h
index da1797f..0615495 100644
--- a/sdk/objc/Framework/Headers/WebRTC/RTCMTLVideoView.h
+++ b/sdk/objc/Framework/Headers/WebRTC/RTCMTLVideoView.h
@@ -32,7 +32,7 @@
 NS_CLASS_AVAILABLE_IOS(9)
 
 RTC_EXPORT
-@interface RTCMTLVideoView : UIView <RTCVideoRenderer>
+@interface RTCMTLVideoView : UIView<RTCVideoRenderer>
 
 @property(nonatomic, weak) id<RTCVideoViewDelegate> delegate;