Expose vector::swap on ScopedPtrVector.

cc/scoped_ptr_vector.h

Index: cc/scoped_ptr_vector.h
diff --git a/cc/scoped_ptr_vector.h b/cc/scoped_ptr_vector.h
index b4271e8231066f5d1bf14c5481e350658d52a183..ee1edbbf9f6eb4349b2af2ed344af1ac3b3773de 100644
--- a/cc/scoped_ptr_vector.h
+++ b/cc/scoped_ptr_vector.h
@@ -84,6 +84,10 @@ class ScopedPtrVector {
     data_.insert(data_.begin() + index, item.release());
   }
 
+  void swap(ScopedPtrVector<T>& other) {
+    data_.swap(other.data_);
+  }
+
   iterator begin() { return data_.begin(); }
   const_iterator begin() const { return data_.begin(); }
   iterator end() { return data_.end(); }