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/media/sctp/sctptransport_unittest.cc b/media/sctp/sctptransport_unittest.cc
index 86f4553..75c2796 100644
--- a/media/sctp/sctptransport_unittest.cc
+++ b/media/sctp/sctptransport_unittest.cc
@@ -31,7 +31,7 @@
 // Use ports other than the default 5000 for testing.
 static const int kTransport1Port = 5001;
 static const int kTransport2Port = 5002;
-}
+}  // namespace
 
 namespace cricket {