[cros] Define a range of stock user images availables for selection.

chrome/browser/chromeos/login/user_image_screen.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/chromeos/login/user_image_screen.h"
 
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/chromeos/login/default_user_images.h"
@@ skipping 130 matching lines @@
 }
 
 void UserImageScreen::OnDefaultImageSelected(int index) {
   UserManager* user_manager = UserManager::Get();
   user_manager->SaveUserDefaultImageIndex(
       user_manager->GetLoggedInUser().email(), index);
 
   get_screen_observer()->OnExit(ScreenObserver::USER_IMAGE_SELECTED);
 
   UMA_HISTOGRAM_ENUMERATION("UserImage.FirstTimeChoice",
-                            index,
+                            GetDefaultImageHistogramValue(index),
                             kHistogramImagesCount);
 }
 
 void UserImageScreen::OnActorDestroyed(UserImageScreenActor* actor) {
   if (actor_ == actor)
     actor_ = NULL;
 }
 
 void UserImageScreen::Observe(int type,
                               const content::NotificationSource& source,
@@ skipping 20 matching lines @@
       if (actor_)
         actor_->OnProfileImageAbsent();
       break;
     }
     default:
       NOTREACHED();
   }
 }
 
 }  // namespace chromeos