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/timeutils.cc b/rtc_base/timeutils.cc
index 35c25c7..f195f2e 100644
--- a/rtc_base/timeutils.cc
+++ b/rtc_base/timeutils.cc
@@ -21,9 +21,13 @@
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
+// clang-format off
+// clang formatting would put <windows.h> last,
+// which leads to compilation failure.
 #include <windows.h>
 #include <mmsystem.h>
 #include <sys/timeb.h>
+// clang-format on
 #endif
 
 #include "rtc_base/checks.h"
@@ -164,8 +168,8 @@
   int min = tm.tm_min;
   int sec = tm.tm_sec;
 
-  bool expiry_in_leap_year = (year % 4 == 0 &&
-                              (year % 100 != 0 || year % 400 == 0));
+  bool expiry_in_leap_year =
+      (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
 
   if (year < 1970)
     return -1;
@@ -188,13 +192,15 @@
 
   // We will have added one day too much above if expiration is during a leap
   // year, and expiration is in January or February.
-  if (expiry_in_leap_year && month <= 2 - 1) // |month| is zero based.
+  if (expiry_in_leap_year && month <= 2 - 1)  // |month| is zero based.
     day -= 1;
 
   // Combine all variables into seconds from 1970-01-01 00:00 (except |month|
   // which was accumulated into |day| above).
-  return (((static_cast<int64_t>
-            (year - 1970) * 365 + day) * 24 + hour) * 60 + min) * 60 + sec;
+  return (((static_cast<int64_t>(year - 1970) * 365 + day) * 24 + hour) * 60 +
+          min) *
+             60 +
+         sec;
 }
 
 int64_t TimeUTCMicros() {
@@ -214,4 +220,4 @@
 #endif
 }
 
-} // namespace rtc
+}  // namespace rtc