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/fake_prefs.h b/common/fake_prefs.h
index d194060..b1c5b71 100644
--- a/common/fake_prefs.h
+++ b/common/fake_prefs.h
@@ -72,14 +72,14 @@
   };
 
   // Class to store compile-time type-dependent constants.
-  template<typename T>
+  template <typename T>
   class PrefConsts {
    public:
     // The PrefType associated with T.
     static FakePrefs::PrefType const type;
 
     // The data member pointer to PrefValue associated with T.
-    static T FakePrefs::PrefValue::* const member;
+    static T FakePrefs::PrefValue::*const member;
   };
 
   // Returns a string representation of the PrefType useful for logging.
@@ -90,13 +90,13 @@
 
   // Helper function to set a value of the passed |key|. It sets the type based
   // on the template parameter T.
-  template<typename T>
+  template <typename T>
   void SetValue(const std::string& key, const T& value);
 
   // Helper function to get a value from the map checking for invalid calls.
   // The function fails the test if you attempt to read a value  defined as a
   // different type. Returns whether the get succeeded.
-  template<typename T>
+  template <typename T>
   bool GetValue(const std::string& key, T* value) const;
 
   // Container for all the key/value pairs.