Move temp file functions to base namespace.

net/http/http_network_transaction_unittest.cc

Index: net/http/http_network_transaction_unittest.cc
diff --git a/net/http/http_network_transaction_unittest.cc b/net/http/http_network_transaction_unittest.cc
index 67fabf1189de788e6f853a5c437dae5d726194bf..00295419b930c9fe48b6d7640ca838ec66833ddf 100644
--- a/net/http/http_network_transaction_unittest.cc
+++ b/net/http/http_network_transaction_unittest.cc
@@ -7652,7 +7652,7 @@ TEST_P(HttpNetworkTransactionTest, LargeContentLengthThenClose) {
 
 TEST_P(HttpNetworkTransactionTest, UploadFileSmallerThanLength) {
   base::FilePath temp_file_path;
-  ASSERT_TRUE(file_util::CreateTemporaryFile(&temp_file_path));
+  ASSERT_TRUE(base::CreateTemporaryFile(&temp_file_path));
   const uint64 kFakeSize = 100000;  // file is actually blank
   UploadFileElementReader::ScopedOverridingContentLengthForTests
       overriding_content_length(kFakeSize);
@@ -7708,7 +7708,7 @@ TEST_P(HttpNetworkTransactionTest, UploadFileSmallerThanLength) {
 
 TEST_P(HttpNetworkTransactionTest, UploadUnreadableFile) {
   base::FilePath temp_file;
-  ASSERT_TRUE(file_util::CreateTemporaryFile(&temp_file));
+  ASSERT_TRUE(base::CreateTemporaryFile(&temp_file));
   std::string temp_file_content("Unreadable file.");
   ASSERT_TRUE(file_util::WriteFile(temp_file, temp_file_content.c_str(),
                                    temp_file_content.length()));