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/Headers/WebRTC/RTCConfiguration.h

@@ -34,10 +34,7 @@ typedef NS_ENUM(NSInteger, RTCBundlePolicy) {
 };
 
 /** Represents the rtcp mux policy. */
-typedef NS_ENUM(NSInteger, RTCRtcpMuxPolicy) {
-  RTCRtcpMuxPolicyNegotiate,
-  RTCRtcpMuxPolicyRequire
-};
+typedef NS_ENUM(NSInteger, RTCRtcpMuxPolicy) { RTCRtcpMuxPolicyNegotiate, RTCRtcpMuxPolicyRequire };
 
 /** Represents the tcp candidate policy. */
 typedef NS_ENUM(NSInteger, RTCTcpCandidatePolicy) {
@@ -88,8 +85,7 @@ RTC_EXPORT
 @property(nonatomic, assign) RTCRtcpMuxPolicy rtcpMuxPolicy;
 @property(nonatomic, assign) RTCTcpCandidatePolicy tcpCandidatePolicy;
 @property(nonatomic, assign) RTCCandidateNetworkPolicy candidateNetworkPolicy;
-@property(nonatomic, assign)
-    RTCContinualGatheringPolicy continualGatheringPolicy;
+@property(nonatomic, assign) RTCContinualGatheringPolicy continualGatheringPolicy;
 
 /** By default, the PeerConnection will use a limited number of IPv6 network
  *  interfaces, in order to avoid too many ICE candidate pairs being created