Improve accessibility of user image selection screen.

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

 // Copyright (c) 2012 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/user_image_screen_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 47 matching lines @@
       l10n_util::GetStringUTF16(IDS_IMAGE_SCREEN_PROFILE_PHOTO));
   localized_strings->SetString("profilePhotoLoading",
       l10n_util::GetStringUTF16(IDS_IMAGE_SCREEN_PROFILE_LOADING_PHOTO));
   localized_strings->SetString("okButtonText",
       l10n_util::GetStringUTF16(IDS_OK));
 }
 
 void UserImageScreenHandler::Initialize() {
   ListValue image_urls;
   for (int i = 0; i < kDefaultImagesCount; ++i) {
-    image_urls.Append(new StringValue(GetDefaultImageUrl(i)));
+    DictionaryValue* dict = new DictionaryValue();
+    dict->Set("url", new StringValue(GetDefaultImageUrl(i)));
+    dict->Set("title", new StringValue(GetDefaultImageDescription(i)));
+    image_urls.Append(dict);
   }
   web_ui()->CallJavascriptFunction("oobe.UserImageScreen.setUserImages",
                                    image_urls);
 
   if (selected_image_ != User::kInvalidImageIndex)
     SelectImage(selected_image_);
 
   if (profile_picture_data_url_ != chrome::kAboutBlankURL)
     SendProfileImage(profile_picture_data_url_);
   else if (profile_picture_absent_)
@@ skipping 161 matching lines @@
 }
 
 void UserImageScreenHandler::OnCameraPresenceCheckDone() {
   base::FundamentalValue present_value(
       CameraDetector::camera_presence() == CameraDetector::kCameraPresent);
   web_ui()->CallJavascriptFunction("oobe.UserImageScreen.setCameraPresent",
                                    present_value);
 }
 
 }  // namespace chromeos