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}

rtc_base/crc32_unittest.cc

@@ -18,7 +18,8 @@ namespace rtc {
 TEST(Crc32Test, TestBasic) {
   EXPECT_EQ(0U, ComputeCrc32(""));
   EXPECT_EQ(0x352441C2U, ComputeCrc32("abc"));
-  EXPECT_EQ(0x171A3F5FU,
+  EXPECT_EQ(
+      0x171A3F5FU,
       ComputeCrc32("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"));
 }