Move temp file functions to base namespace.

components/visitedlink/test/visitedlink_perftest.cc

Index: components/visitedlink/test/visitedlink_perftest.cc
diff --git a/components/visitedlink/test/visitedlink_perftest.cc b/components/visitedlink/test/visitedlink_perftest.cc
index a527c344706bfc348b10bd352c8f530db7fde65c..24ddf054a65b7f4a2f5ec482d7bb718327b94dce 100644
--- a/components/visitedlink/test/visitedlink_perftest.cc
+++ b/components/visitedlink/test/visitedlink_perftest.cc
@@ -65,7 +65,7 @@ class VisitedLink : public testing::Test {
  protected:
   base::FilePath db_path_;
   virtual void SetUp() {
-    ASSERT_TRUE(file_util::CreateTemporaryFile(&db_path_));
+    ASSERT_TRUE(base::CreateTemporaryFile(&db_path_));
   }
   virtual void TearDown() {
     base::DeleteFile(db_path_, false);