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/modules/audio_processing/config_unittest.cc b/modules/audio_processing/config_unittest.cc
index 8776ee3..19e9ab3 100644
--- a/modules/audio_processing/config_unittest.cc
+++ b/modules/audio_processing/config_unittest.cc
@@ -19,11 +19,9 @@
   static const int kDefaultFactor;
   static const int kDefaultOffset;
 
-  MyExperiment()
-    : factor(kDefaultFactor), offset(kDefaultOffset) {}
+  MyExperiment() : factor(kDefaultFactor), offset(kDefaultOffset) {}
 
-  MyExperiment(int factor, int offset)
-    : factor(factor), offset(offset) {}
+  MyExperiment(int factor, int offset) : factor(factor), offset(offset) {}
 
   int factor;
   int offset;
@@ -61,17 +59,13 @@
       ConfigOptionID::kAlgo1CostFunctionForTest;
   Algo1_CostFunction() {}
 
-  virtual int cost(int x) const {
-    return x;
-  }
+  virtual int cost(int x) const { return x; }
 
   virtual ~Algo1_CostFunction() {}
 };
 
 struct SqrCost : Algo1_CostFunction {
-  virtual int cost(int x) const {
-    return x*x;
-  }
+  virtual int cost(int x) const { return x * x; }
 };
 
 TEST(Config, SupportsPolymorphism) {