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/action_processor.h b/common/action_processor.h
index 1a67c99..735a106 100644
--- a/common/action_processor.h
+++ b/common/action_processor.h
@@ -80,9 +80,7 @@
 
   // Sets/gets the current delegate. Set to null to remove a delegate.
   ActionProcessorDelegate* delegate() const { return delegate_; }
-  void set_delegate(ActionProcessorDelegate *delegate) {
-    delegate_ = delegate;
-  }
+  void set_delegate(ActionProcessorDelegate* delegate) { delegate_ = delegate; }
 
   // Returns a pointer to the current Action that's processing.
   AbstractAction* current_action() const { return current_action_.get(); }