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}

modules/video_coding/utility/quality_scaler_unittest.cc

@@ -28,16 +28,16 @@ static const int kMinFramesNeededToScale = 60;  // From quality_scaler.cc.
 static const size_t kDefaultTimeoutMs = 150;
 }  // namespace
 
-#define DO_SYNC(q, block) do {    \
-  rtc::Event event(false, false); \
-  q->PostTask([this, &event] {    \
-    block;                        \
-    event.Set();                  \
-  });                             \
-  RTC_CHECK(event.Wait(1000));    \
+#define DO_SYNC(q, block)           \
+  do {                              \
+    rtc::Event event(false, false); \
+    q->PostTask([this, &event] {    \
+      block;                        \
+      event.Set();                  \
+    });                             \
+    RTC_CHECK(event.Wait(1000));    \
   } while (0)
 
-
 class MockAdaptationObserver : public AdaptationObserverInterface {
  public:
   MockAdaptationObserver() : event(false, false) {}
@@ -87,7 +87,7 @@ class QualityScalerTest : public ::testing::Test,
   }
 
   ~QualityScalerTest() {
-    DO_SYNC(q_, {qs_.reset(nullptr);});
+    DO_SYNC(q_, { qs_.reset(nullptr); });
   }
 
   void TriggerScale(ScaleDirection scale_direction) {