Move temp file functions to base namespace.

base/test/launcher/unit_test_launcher.cc

Index: base/test/launcher/unit_test_launcher.cc
diff --git a/base/test/launcher/unit_test_launcher.cc b/base/test/launcher/unit_test_launcher.cc
index 8a57d178f651fcce9eb3e894caba7d3fc4de1e25..d96ca6257c19d464ef1d05c4d24e93ef95350b30 100644
--- a/base/test/launcher/unit_test_launcher.cc
+++ b/base/test/launcher/unit_test_launcher.cc
@@ -157,8 +157,7 @@ class UnitTestLauncherDelegate : public TestLauncherDelegate {
     // per run to ensure clean state and make it possible to launch multiple
     // processes in parallel.
     base::FilePath output_file;
-    CHECK(file_util::CreateNewTempDirectory(FilePath::StringType(),
-                                            &output_file));
+    CHECK(CreateNewTempDirectory(FilePath::StringType(), &output_file));
     output_file = output_file.AppendASCII("test_results.xml");
 
     std::vector<std::string> current_test_names;
@@ -192,8 +191,7 @@ class UnitTestLauncherDelegate : public TestLauncherDelegate {
     // per run to ensure clean state and make it possible to launch multiple
     // processes in parallel.
     base::FilePath output_file;
-    CHECK(file_util::CreateNewTempDirectory(FilePath::StringType(),
-                                            &output_file));
+    CHECK(CreateNewTempDirectory(FilePath::StringType(), &output_file));
     output_file = output_file.AppendASCII("test_results.xml");
 
     CommandLine cmd_line(