[cros] Add attribution (author & website) strings to stock user images.

chrome/browser/chromeos/login/default_user_images.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_DEFAULT_USER_IMAGES_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_DEFAULT_USER_IMAGES_H_
 
 #include <cstddef>  // for size_t
 #include <string>
 
@@ skipping 17 matching lines @@
 std::string GetDefaultImageUrl(int index);
 
 // Checks if the given URL points to one of the default images. If it is,
 // returns true and its index through |image_id|. If not, returns false.
 bool IsDefaultImageUrl(const std::string url, int* image_id);
 
 // Returns bitmap of default user image with specified index.
 const gfx::ImageSkia& GetDefaultImage(int index);
 
 // Resource IDs of default user images.
-extern const int kDefaultImageResources[];
+extern const int kDefaultImageResourceIDs[];
+
+// String IDs of author names for default user images.
+extern const int kDefaultImageAuthorIDs[];
+
+// String IDs of websites for default user images.
+extern const int kDefaultImageWebsiteIDs[];
 
 // Number of default images.
 extern const int kDefaultImagesCount;
 
 // The starting index of default images available for selection. Note that
 // existing users may have images with smaller indices.
 extern const int kFirstDefaultImageIndex;
 
 /// Histogram values. ////////////////////////////////////////////////////////
 
@@ skipping 17 matching lines @@
 
 // Number of possible histogram values for user images.
 extern const int kHistogramImagesCount;
 
 // Returns the histogram value corresponding to the given default image index.
 int GetDefaultImageHistogramValue(int index);
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_DEFAULT_USER_IMAGES_H_