Add ExecuteJavaScriptForTest and make all tests use it

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h"
 
 #include "ash/system/chromeos/devicetype_utils.h"
 #include "base/bind.h"
 #include "base/guid.h"
 #include "base/logging.h"
@@ skipping 743 matching lines @@
       web_ui()->GetWebContents(),
       GURL(kAuthIframeParentOrigin),
       kAuthIframeParentName);
 
   if (!StartupUtils::IsWebviewSigninEnabled()) {
     std::string code;
     code += "document.getElementById('Email').value = '" + test_user_ + "';";
     code += "document.getElementById('Passwd').value = '" + test_pass_ + "';";
     code += "document.getElementById('signIn').click();";
 
-    frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
+    frame->ExecuteJavaScriptForTests(base::ASCIIToUTF16(code));
   } else {
     std::string code;
 
     code =
         "document.getElementById('identifier').value = '" + test_user_ + "';";
     code += "document.getElementById('nextButton').click();";
-    frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
+    frame->ExecuteJavaScriptForTests(base::ASCIIToUTF16(code));
 
     if (!test_pass_.empty()) {
       code =
           "document.getElementById('password').value = '" + test_pass_ + "';";
       code += "document.getElementById('nextButton').click();";
-      frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
+      frame->ExecuteJavaScriptForTests(base::ASCIIToUTF16(code));
     }
   }
 
   // Test properties are cleared in HandleCompleteLogin because the form
   // submission might fail and login will not be attempted after reloading
   // if they are cleared here.
 }
 
 void GaiaScreenHandler::SetSAMLPrincipalsAPIUsed(bool api_used) {
   using_saml_api_ = api_used;
@@ skipping 158 matching lines @@
 SigninScreenHandlerDelegate* GaiaScreenHandler::Delegate() {
   DCHECK(signin_screen_handler_);
   return signin_screen_handler_->delegate_;
 }
 
 void GaiaScreenHandler::SetSigninScreenHandler(SigninScreenHandler* handler) {
   signin_screen_handler_ = handler;
 }
 
 }  // namespace chromeos