Move temp file functions to base namespace.

net/base/upload_file_element_reader_unittest.cc

Index: net/base/upload_file_element_reader_unittest.cc
diff --git a/net/base/upload_file_element_reader_unittest.cc b/net/base/upload_file_element_reader_unittest.cc
index b61184625d4c65c4c49a7e00083a5b96bce98258..3e7c1107d9f54a4062246e511ebeb1515f72c89b 100644
--- a/net/base/upload_file_element_reader_unittest.cc
+++ b/net/base/upload_file_element_reader_unittest.cc
@@ -26,8 +26,8 @@ class UploadFileElementReaderTest : public PlatformTest {
 
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
-    ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir_.path(),
-                                                    &temp_file_path_));
+    ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(),
+                                               &temp_file_path_));
     ASSERT_EQ(
         static_cast<int>(bytes_.size()),
         file_util::WriteFile(temp_file_path_, &bytes_[0], bytes_.size()));
@@ -244,8 +244,8 @@ class UploadFileElementReaderSyncTest : public PlatformTest {
 
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
-    ASSERT_TRUE(file_util::CreateTemporaryFileInDir(temp_dir_.path(),
-                                                    &temp_file_path_));
+    ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(),
+                                               &temp_file_path_));
     ASSERT_EQ(
         static_cast<int>(bytes_.size()),
         file_util::WriteFile(temp_file_path_, &bytes_[0], bytes_.size()));