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/rtc_base/sigslot_unittest.cc b/rtc_base/sigslot_unittest.cc
index 234bf45..114a59f 100644
--- a/rtc_base/sigslot_unittest.cc
+++ b/rtc_base/sigslot_unittest.cc
@@ -28,33 +28,32 @@
   sigslot::signal0<> signal_;
 };
 
-template<class slot_policy = sigslot::single_threaded,
-         class signal_policy = sigslot::single_threaded>
+template <class slot_policy = sigslot::single_threaded,
+          class signal_policy = sigslot::single_threaded>
 class SigslotReceiver : public sigslot::has_slots<slot_policy> {
  public:
   SigslotReceiver() : signal_(nullptr), signal_count_(0) {}
-  ~SigslotReceiver() {
-  }
+  ~SigslotReceiver() {}
 
   // Provide copy constructor so that tests can exercise the has_slots copy
   // constructor.
   SigslotReceiver(const SigslotReceiver&) = default;
 
   void Connect(sigslot::signal0<signal_policy>* signal) {
-    if (!signal) return;
+    if (!signal)
+      return;
     Disconnect();
     signal_ = signal;
     signal->connect(this,
                     &SigslotReceiver<slot_policy, signal_policy>::OnSignal);
   }
   void Disconnect() {
-    if (!signal_) return;
+    if (!signal_)
+      return;
     signal_->disconnect(this);
     signal_ = nullptr;
   }
-  void OnSignal() {
-    ++signal_count_;
-  }
+  void OnSignal() { ++signal_count_; }
   int signal_count() { return signal_count_; }
 
  private:
@@ -62,8 +61,8 @@
   int signal_count_;
 };
 
-template<class slot_policy = sigslot::single_threaded,
-         class mt_signal_policy = sigslot::multi_threaded_local>
+template <class slot_policy = sigslot::single_threaded,
+          class mt_signal_policy = sigslot::multi_threaded_local>
 class SigslotSlotTest : public testing::Test {
  protected:
   SigslotSlotTest() {
@@ -71,12 +70,8 @@
     TemplateIsMT(&mt_policy);
   }
 
-  virtual void SetUp() {
-    Connect();
-  }
-  virtual void TearDown() {
-    Disconnect();
-  }
+  virtual void SetUp() { Connect(); }
+  virtual void TearDown() { Disconnect(); }
 
   void Disconnect() {
     st_receiver_.Disconnect();
@@ -99,12 +94,12 @@
 
 typedef SigslotSlotTest<> SigslotSTSlotTest;
 typedef SigslotSlotTest<sigslot::multi_threaded_local,
-                        sigslot::multi_threaded_local> SigslotMTSlotTest;
+                        sigslot::multi_threaded_local>
+    SigslotMTSlotTest;
 
 class multi_threaded_local_fake : public sigslot::multi_threaded_local {
  public:
-  multi_threaded_local_fake() : lock_count_(0), unlock_count_(0) {
-  }
+  multi_threaded_local_fake() : lock_count_(0), unlock_count_(0) {}
 
   void lock() { ++lock_count_; }
   void unlock() { ++unlock_count_; }
@@ -118,8 +113,8 @@
   int unlock_count_;
 };
 
-typedef SigslotSlotTest<multi_threaded_local_fake,
-                        multi_threaded_local_fake> SigslotMTLockBase;
+typedef SigslotSlotTest<multi_threaded_local_fake, multi_threaded_local_fake>
+    SigslotMTLockBase;
 
 class SigslotMTLockTest : public SigslotMTLockBase {
  protected:
@@ -329,9 +324,7 @@
   }
 
  private:
-  void Disconnect() {
-    signal_->disconnect_all();
-  }
+  void Disconnect() { signal_->disconnect_all(); }
 
   sigslot::signal<>* signal_;
 };