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/ratetracker.cc b/rtc_base/ratetracker.cc
index 68bd8a1..e31d266 100644
--- a/rtc_base/ratetracker.cc
+++ b/rtc_base/ratetracker.cc
@@ -79,13 +79,12 @@
   // Only count a portion of the first bucket according to how much of the
   // first bucket is within the current interval.
   size_t total_samples = ((sample_buckets_[start_bucket] *
-      (bucket_milliseconds_ - milliseconds_to_skip)) +
-      (bucket_milliseconds_ >> 1)) /
-      bucket_milliseconds_;
+                           (bucket_milliseconds_ - milliseconds_to_skip)) +
+                          (bucket_milliseconds_ >> 1)) /
+                         bucket_milliseconds_;
   // All other buckets in the interval are counted in their entirety.
   for (size_t i = NextBucketIndex(start_bucket);
-      i != NextBucketIndex(current_bucket_);
-      i = NextBucketIndex(i)) {
+       i != NextBucketIndex(current_bucket_); i = NextBucketIndex(i)) {
     total_samples += sample_buckets_[i];
   }
   // Convert to samples per second.
@@ -125,7 +124,8 @@
   }
   // Ensure that bucket_start_time_milliseconds_ is updated appropriately if
   // the entire buffer of samples has been expired.
-  bucket_start_time_milliseconds_ += bucket_milliseconds_ *
+  bucket_start_time_milliseconds_ +=
+      bucket_milliseconds_ *
       ((current_time - bucket_start_time_milliseconds_) / bucket_milliseconds_);
   // Add all samples in the bucket that includes the current time.
   sample_buckets_[current_bucket_] += sample_count;