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/Audio/RTCAudioSession+Private.h

@@ -77,14 +77,12 @@ NS_ASSUME_NONNULL_BEGIN
 - (NSError *)configurationErrorWithDescription:(NSString *)description;
 
 // Properties and methods for tests.
-@property(nonatomic, readonly)
-    std::vector<__weak id<RTCAudioSessionDelegate> > delegates;
+@property(nonatomic, readonly) std::vector<__weak id<RTCAudioSessionDelegate> > delegates;
 
 - (void)notifyDidBeginInterruption;
-- (void)notifyDidEndInterruptionWithShouldResumeSession:
-    (BOOL)shouldResumeSession;
+- (void)notifyDidEndInterruptionWithShouldResumeSession:(BOOL)shouldResumeSession;
 - (void)notifyDidChangeRouteWithReason:(AVAudioSessionRouteChangeReason)reason
-    previousRoute:(AVAudioSessionRouteDescription *)previousRoute;
+                         previousRoute:(AVAudioSessionRouteDescription *)previousRoute;
 - (void)notifyMediaServicesWereLost;
 - (void)notifyMediaServicesWereReset;
 - (void)notifyDidChangeCanPlayOrRecord:(BOOL)canPlayOrRecord;

sdk/objc/Framework/Classes/Audio/RTCNativeAudioSessionDelegateAdapter.h

@@ -26,8 +26,7 @@ class AudioSessionObserver;
 /** |observer| is a raw pointer and should be kept alive
  *  for this object's lifetime.
  */
-- (instancetype)initWithObserver:(webrtc::AudioSessionObserver *)observer
-    NS_DESIGNATED_INITIALIZER;
+- (instancetype)initWithObserver:(webrtc::AudioSessionObserver *)observer NS_DESIGNATED_INITIALIZER;
 
 @end