Fix cpplint whitespace/braces issues

Change-Id: Ide80939faf8e8690d8842dde8133902ac725ed1a
diff --git a/compiler/dex/dataflow_iterator.h b/compiler/dex/dataflow_iterator.h
index 4c112f9..1946869 100644
--- a/compiler/dex/dataflow_iterator.h
+++ b/compiler/dex/dataflow_iterator.h
@@ -42,7 +42,7 @@
   class DataflowIterator {
     public:
 
-      virtual ~DataflowIterator(){}
+      virtual ~DataflowIterator() {}
 
       // Return the next BasicBlock* to visit.
       BasicBlock* Next() {