Fix a missing base:: for StringToLowerASCII

chrome/browser/chrome_elf_init_unittest_win.cc

Index: chrome/browser/chrome_elf_init_unittest_win.cc
diff --git a/chrome/browser/chrome_elf_init_unittest_win.cc b/chrome/browser/chrome_elf_init_unittest_win.cc
index c1d629576ff38cb3837e77506d69dac91e504e8a..c6e362874fce21151ec75bef42a7cc5f175c2f84 100644
--- a/chrome/browser/chrome_elf_init_unittest_win.cc
+++ b/chrome/browser/chrome_elf_init_unittest_win.cc
@@ -225,7 +225,7 @@ TEST_F(ChromeBlacklistTrialTest, TestBlacklistBypass) {
   EXPECT_TRUE(GetLoadedBlacklistedModules(&module_names));
   ASSERT_EQ(1, module_names.size());
   EXPECT_STREQ(kTestDllName,
-               StringToLowerASCII(
+               base::StringToLowerASCII(
                    base::FilePath(module_names[0]).BaseName().value()).c_str());
 }