update_engine: Run clang-format on common/

BUG=none
TEST=unittest

Change-Id: Icdaf5017e03a197bc576f08f4b8dcdd00cff217c
Reviewed-on: https://chromium-review.googlesource.com/1407541
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>
diff --git a/common/test_utils.h b/common/test_utils.h
index 5be48cf..44b7aa1 100644
--- a/common/test_utils.h
+++ b/common/test_utils.h
@@ -87,14 +87,14 @@
 class ScopedFilesystemUnmounter {
  public:
   explicit ScopedFilesystemUnmounter(const std::string& mountpoint)
-      : mountpoint_(mountpoint),
-        should_unmount_(true) {}
+      : mountpoint_(mountpoint), should_unmount_(true) {}
   ~ScopedFilesystemUnmounter() {
     if (should_unmount_) {
       utils::UnmountFilesystem(mountpoint_);
     }
   }
   void set_should_unmount(bool unmount) { should_unmount_ = unmount; }
+
  private:
   const std::string mountpoint_;
   bool should_unmount_;
@@ -183,10 +183,10 @@
 
 class NoneType;
 
-template<typename T>
+template <typename T>
 class ObjectFeederAction;
 
-template<typename T>
+template <typename T>
 class ActionTraits<ObjectFeederAction<T>> {
  public:
   typedef T OutputObjectType;
@@ -195,7 +195,7 @@
 
 // This is a simple Action class for testing. It feeds an object into
 // another action.
-template<typename T>
+template <typename T>
 class ObjectFeederAction : public Action<ObjectFeederAction<T>> {
  public:
   typedef NoneType InputObjectType;
@@ -210,17 +210,16 @@
   }
   static std::string StaticType() { return "ObjectFeederAction"; }
   std::string Type() const { return StaticType(); }
-  void set_obj(const T& out_obj) {
-    out_obj_ = out_obj;
-  }
+  void set_obj(const T& out_obj) { out_obj_ = out_obj; }
+
  private:
   T out_obj_;
 };
 
-template<typename T>
+template <typename T>
 class ObjectCollectorAction;
 
-template<typename T>
+template <typename T>
 class ActionTraits<ObjectCollectorAction<T>> {
  public:
   typedef NoneType OutputObjectType;
@@ -229,7 +228,7 @@
 
 // This is a simple Action class for testing. It receives an object from
 // another action.
-template<typename T>
+template <typename T>
 class ObjectCollectorAction : public Action<ObjectCollectorAction<T>> {
  public:
   typedef T InputObjectType;
@@ -245,6 +244,7 @@
   static std::string StaticType() { return "ObjectCollectorAction"; }
   std::string Type() const { return StaticType(); }
   const T& object() const { return object_; }
+
  private:
   T object_;
 };