Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index 4d12e68fd949bf3f1b115a9909fc5686a1540c8d..3f07595eed3940bd555eab691f540aa919d30e90 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -60,9 +60,9 @@ net::BackendType ChooseCacheBackendType() {
   if (command_line.HasSwitch(switches::kUseSimpleCacheBackend)) {
     const std::string opt_value =
         command_line.GetSwitchValueASCII(switches::kUseSimpleCacheBackend);
-    if (LowerCaseEqualsASCII(opt_value, "off"))
+    if (base::LowerCaseEqualsASCII(opt_value, "off"))
       return net::CACHE_BACKEND_BLOCKFILE;
-    if (opt_value == "" || LowerCaseEqualsASCII(opt_value, "on"))
+    if (opt_value == "" || base::LowerCaseEqualsASCII(opt_value, "on"))
       return net::CACHE_BACKEND_SIMPLE;
   }
   const std::string experiment_name =