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/bytebuffer_unittest.cc

@@ -79,8 +79,8 @@ TEST(ByteBufferTest, TestBufferLength) {
 }
 
 TEST(ByteBufferTest, TestReadWriteBuffer) {
-  ByteBufferWriter::ByteOrder orders[2] = { ByteBufferWriter::ORDER_HOST,
-                                            ByteBufferWriter::ORDER_NETWORK };
+  ByteBufferWriter::ByteOrder orders[2] = {ByteBufferWriter::ORDER_HOST,
+                                           ByteBufferWriter::ORDER_NETWORK};
   for (size_t i = 0; i < arraysize(orders); i++) {
     ByteBufferWriter buffer(orders[i]);
     EXPECT_EQ(orders[i], buffer.Order());