Add utf_string_conversions to base namespace.

chrome/browser/printing/print_dialog_cloud.cc

Index: chrome/browser/printing/print_dialog_cloud.cc
diff --git a/chrome/browser/printing/print_dialog_cloud.cc b/chrome/browser/printing/print_dialog_cloud.cc
index c5ebd4a75c429935b81f4c7796697666a8680bee..d60d423d6036ea56ca1aa1e92d51ca9405af9c53 100644
--- a/chrome/browser/printing/print_dialog_cloud.cc
+++ b/chrome/browser/printing/print_dialog_cloud.cc
@@ -161,17 +161,17 @@ string16 GetSwitchValueString16(const CommandLine& command_line,
 
 void CloudPrintDataSenderHelper::CallJavascriptFunction(
     const std::wstring& function_name) {
-  web_ui_->CallJavascriptFunction(WideToASCII(function_name));
+  web_ui_->CallJavascriptFunction(base::WideToASCII(function_name));
 }
 
 void CloudPrintDataSenderHelper::CallJavascriptFunction(
     const std::wstring& function_name, const Value& arg) {
-  web_ui_->CallJavascriptFunction(WideToASCII(function_name), arg);
+  web_ui_->CallJavascriptFunction(base::WideToASCII(function_name), arg);
 }
 
 void CloudPrintDataSenderHelper::CallJavascriptFunction(
     const std::wstring& function_name, const Value& arg1, const Value& arg2) {
-  web_ui_->CallJavascriptFunction(WideToASCII(function_name), arg1, arg2);
+  web_ui_->CallJavascriptFunction(base::WideToASCII(function_name), arg1, arg2);
 }
 
 void CloudPrintDataSenderHelper::CallJavascriptFunction(
@@ -180,7 +180,7 @@ void CloudPrintDataSenderHelper::CallJavascriptFunction(
     const Value& arg2,
     const Value& arg3) {
   web_ui_->CallJavascriptFunction(
-      WideToASCII(function_name), arg1, arg2, arg3);
+      base::WideToASCII(function_name), arg1, arg2, arg3);
 }
 
 // Clears out the pointer we're using to communicate.  Either routine is