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}

sdk/objc/Framework/Classes/PeerConnection/RTCConfiguration+Native.h

@@ -18,9 +18,10 @@ NS_ASSUME_NONNULL_BEGIN
 
 /** Optional TurnCustomizer.
  *  With this class one can modify outgoing TURN messages.
- *  The object passed in must remain valid until PeerConnection::Close() is called.
+ *  The object passed in must remain valid until PeerConnection::Close() is
+ * called.
  */
-@property(nonatomic, nullable) webrtc::TurnCustomizer *turnCustomizer;
+@property(nonatomic, nullable) webrtc::TurnCustomizer* turnCustomizer;
 
 @end