Index: cc/resources/transferable_resource.cc |
diff --git a/cc/resources/transferable_resource.cc b/cc/resources/transferable_resource.cc |
index cf463bf3577955fecee40cbbe1b1567cb5ef8ee0..74e0983778e5ead7f2418527ba01cdf4a1d02660 100644 |
--- a/cc/resources/transferable_resource.cc |
+++ b/cc/resources/transferable_resource.cc |
@@ -33,6 +33,7 @@ ReturnedResource TransferableResource::ToReturnedResource() const { |
void TransferableResource::ReturnResources( |
const TransferableResourceArray& input, |
ReturnedResourceArray* output) { |
+ DCHECK(input.begin()); |
for (TransferableResourceArray::const_iterator it = input.begin(); |
it != input.end(); ++it) |
output->push_back(it->ToReturnedResource()); |