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/rtc_base/thread_checker.h b/rtc_base/thread_checker.h
index cc03b8d..ad04508 100644
--- a/rtc_base/thread_checker.h
+++ b/rtc_base/thread_checker.h
@@ -32,9 +32,7 @@
 // right version for your build configuration.
 class ThreadCheckerDoNothing {
  public:
-  bool CalledOnValidThread() const {
-    return true;
-  }
+  bool CalledOnValidThread() const { return true; }
 
   void DetachFromThread() {}
 };
@@ -86,7 +84,7 @@
       RTC_EXCLUSIVE_LOCK_FUNCTION(thread_like_object) {}
   ~AnnounceOnThread() RTC_UNLOCK_FUNCTION() {}
 
-  template<typename ThreadLikeObject>
+  template <typename ThreadLikeObject>
   static bool IsCurrent(const ThreadLikeObject* thread_like_object) {
     return thread_like_object->IsCurrent();
   }
@@ -163,9 +161,10 @@
 // }
 
 // Document if a function expected to be called from same thread/task queue.
-#define RTC_RUN_ON(x) RTC_THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(x))
+#define RTC_RUN_ON(x) \
+  RTC_THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(x))
 
-#define RTC_DCHECK_RUN_ON(thread_like_object) \
+#define RTC_DCHECK_RUN_ON(thread_like_object)                           \
   rtc::internal::AnnounceOnThread thread_announcer(thread_like_object); \
   RTC_DCHECK(rtc::internal::AnnounceOnThread::IsCurrent(thread_like_object))