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/audio_coding/neteq/decision_logic.h

@@ -97,9 +97,7 @@ class DecisionLogic {
   virtual void ExpandDecision(Operations operation);
 
   // Adds |value| to |sample_memory_|.
-  void AddSampleMemory(int32_t value) {
-    sample_memory_ += value;
-  }
+  void AddSampleMemory(int32_t value) { sample_memory_ += value; }
 
   // Accessors and mutators.
   void set_sample_memory(int32_t value) { sample_memory_ = value; }
@@ -115,11 +113,7 @@ class DecisionLogic {
   // The value 5 sets maximum time-stretch rate to about 100 ms/s.
   static const int kMinTimescaleInterval = 5;
 
-  enum CngState {
-    kCngOff,
-    kCngRfc3389On,
-    kCngInternalOn
-  };
+  enum CngState { kCngOff, kCngRfc3389On, kCngInternalOn };
 
   // Returns the operation that should be done next. |sync_buffer| and |expand|
   // are provided for reference. |decoder_frame_length| is the number of samples