Move logic in UserImageScreen from UserImageScreenHandler

chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc
index fadfb0b551e3a12528ff67b9372e3e1281b770cf..badcb3669deb20e679b58cd7eec9df91c233c974 100644
--- a/chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/base_screen_handler.cc
@@ -80,6 +80,24 @@ void BaseScreenHandler::CallJS(const std::string& method,
 }
 
 void BaseScreenHandler::CallJS(const std::string& method,
+                               const std::string& arg1) {
+  base::StringValue value1(arg1);
+  CallJS(method, value1);
+}
+
+void BaseScreenHandler::CallJS(const std::string& method,
+                               int arg1) {
+  base::FundamentalValue value1(arg1);
+  CallJS(method, value1);
+}
+
+void BaseScreenHandler::CallJS(const std::string& method,
+                               bool arg1) {
+  base::FundamentalValue value1(arg1);
+  CallJS(method, value1);
+}
+
+void BaseScreenHandler::CallJS(const std::string& method,
                                const base::Value& arg1,
                                const base::Value& arg2) {
   web_ui()->CallJavascriptFunction(method, arg1, arg2);