Update webkit/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

webkit/common/blob/scoped_file.cc

Index: webkit/common/blob/scoped_file.cc
diff --git a/webkit/common/blob/scoped_file.cc b/webkit/common/blob/scoped_file.cc
index 0198728412849ba1320a8e22c85c428bb050ab9c..df1d3d4ba9534f286d35f4ccbf73d405663782cc 100644
--- a/webkit/common/blob/scoped_file.cc
+++ b/webkit/common/blob/scoped_file.cc
@@ -63,7 +63,9 @@ void ScopedFile::Reset() {
   }
 
   if (scope_out_policy_ == DELETE_ON_SCOPE_OUT) {
-    base::FileUtilProxy::Delete(file_task_runner_, path_, false /* recursive */,
+    base::FileUtilProxy::Delete(file_task_runner_.get(),
+                                path_,
+                                false /* recursive */,
                                 base::FileUtilProxy::StatusCallback());
   }