[cros, user_manager] Move default user images constants and helper functions out of src/chrome.

chrome/browser/chromeos/login/users/avatar/default_user_images.h

-// Copyright 2014 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_USERS_AVATAR_DEFAULT_USER_IMAGES_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AVATAR_DEFAULT_USER_IMAGES_H_
-
-#include <cstddef>  // for size_t
-#include <string>
-
-#include "base/strings/string16.h"
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace chromeos {
-
-// Returns path to default user image with specified index.
-// The path is used in Local State to distinguish default images.
-// This function is obsolete and is preserved only for compatibility with older
-// profiles which don't user separate image index and path.
-std::string GetDefaultImagePath(int index);
-
-// Checks if given path is one of the default ones. If it is, returns true
-// and its index through |image_id|. If not, returns false.
-bool IsDefaultImagePath(const std::string& path, int* image_id);
-
-// Returns URL to default user image with specified index.
-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);
-
-// Returns a description of a default user image with specified index.
-base::string16 GetDefaultImageDescription(int index);
-
-// Resource IDs of default user images.
-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. ////////////////////////////////////////////////////////
-
-// Histogram value for user image taken from file.
-extern const int kHistogramImageFromFile;
-
-// Histogram value for user image taken from camera.
-extern const int kHistogramImageFromCamera;
-
-// Histogram value a previously used image from camera/file.
-extern const int kHistogramImageOld;
-
-// Histogram value for user image from G+ profile.
-extern const int kHistogramImageFromProfile;
-
-// Histogram value for user video (animated avatar) from camera.
-extern const int kHistogramVideoFromCamera;
-
-// Histogram value for user video from file.
-extern const int kHistogramVideoFromFile;
-
-// 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_USERS_AVATAR_DEFAULT_USER_IMAGES_H_