update_engine: Run clang-format on ./ (root directory)

BUG=none
TEST=unittest

Change-Id: Ibd075dc7ea9a18e798f612e35725f1c83c112809
Reviewed-on: https://chromium-review.googlesource.com/1409708
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_service.cc b/common_service.cc
index 88ead28..0d5ee6d 100644
--- a/common_service.cc
+++ b/common_service.cc
@@ -71,8 +71,7 @@
     "org.chromium.UpdateEngine.Error.Failed";
 
 UpdateEngineService::UpdateEngineService(SystemState* system_state)
-    : system_state_(system_state) {
-}
+    : system_state_(system_state) {}
 
 // org::chromium::UpdateEngineInterfaceInterface methods implementation.