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

components/user_manager/user_image/default_user_images.cc

Index: components/user_manager/user_image/default_user_images.cc
diff --git a/components/user_manager/user_image/default_user_images.cc b/components/user_manager/user_image/default_user_images.cc
new file mode 100644
index 0000000000000000000000000000000000000000..35aabf233a6b6dde3967a48128352ad6b0c9a26d
--- /dev/null
+++ b/components/user_manager/user_image/default_user_images.cc
@@ -0,0 +1,258 @@
+// 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.
+
+#include "components/user_manager/user_image/default_user_images.h"
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_piece.h"
+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/sys_info.h"
+#include "grit/ui_chromeos_resources.h"
+#include "grit/ui_chromeos_strings.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace user_manager {
+
+namespace {
+
+const char kDefaultUrlPrefix[] = "chrome://theme/IDR_LOGIN_DEFAULT_USER_";
+const char kZeroDefaultUrl[] = "chrome://theme/IDR_LOGIN_DEFAULT_USER";
+
+// IDs of default user image descriptions.
+const int kDefaultImageDescriptions[] = {
+    0,  // No description for deprecated user image 0.
+    0,  // No description for deprecated user image 1.
+    0,  // No description for deprecated user image 2.
+    0,  // No description for deprecated user image 3.
+    0,  // No description for deprecated user image 4.
+    0,  // No description for deprecated user image 5.
+    0,  // No description for deprecated user image 6.
+    0,  // No description for deprecated user image 7.
+    0,  // No description for deprecated user image 8.
+    0,  // No description for deprecated user image 9.
+    0,  // No description for deprecated user image 10.
+    0,  // No description for deprecated user image 11.
+    0,  // No description for deprecated user image 12.
+    0,  // No description for deprecated user image 13.
+    0,  // No description for deprecated user image 14.
+    0,  // No description for deprecated user image 15.
+    0,  // No description for deprecated user image 16.
+    0,  // No description for deprecated user image 17.
+    0,  // No description for deprecated user image 18.
+    IDS_LOGIN_DEFAULT_USER_DESC_19,
+    IDS_LOGIN_DEFAULT_USER_DESC_20,
+    IDS_LOGIN_DEFAULT_USER_DESC_21,
+    IDS_LOGIN_DEFAULT_USER_DESC_22,
+    IDS_LOGIN_DEFAULT_USER_DESC_23,
+    IDS_LOGIN_DEFAULT_USER_DESC_24,
+    IDS_LOGIN_DEFAULT_USER_DESC_25,
+    IDS_LOGIN_DEFAULT_USER_DESC_26,
+    IDS_LOGIN_DEFAULT_USER_DESC_27,
+    IDS_LOGIN_DEFAULT_USER_DESC_28,
+    IDS_LOGIN_DEFAULT_USER_DESC_29,
+    IDS_LOGIN_DEFAULT_USER_DESC_30,
+    IDS_LOGIN_DEFAULT_USER_DESC_31,
+    IDS_LOGIN_DEFAULT_USER_DESC_32,
+};
+
+// Returns a string consisting of the prefix specified and the index of the
+// image if its valid.
+std::string GetDefaultImageString(int index, const std::string& prefix) {
+  if (index < 0 || index >= kDefaultImagesCount) {
+    DCHECK(!base::SysInfo::IsRunningOnChromeOS());
+    return std::string();
+  }
+  return base::StringPrintf("%s%d", prefix.c_str(), index);
+}
+
+// Returns true if the string specified consists of the prefix and one of
+// the default images indices. Returns the index of the image in |image_id|
+// variable.
+bool IsDefaultImageString(const std::string& s,
+                          const std::string& prefix,
+                          int* image_id) {
+  DCHECK(image_id);
+  if (!StartsWithASCII(s, prefix, true))
+    return false;
+
+  int image_index = -1;
+  if (base::StringToInt(base::StringPiece(s.begin() + prefix.length(), s.end()),
+                        &image_index)) {
+    if (image_index < 0 || image_index >= kDefaultImagesCount)
+      return false;
+    *image_id = image_index;
+    return true;
+  }
+
+  return false;
+}
+}  // namespace
+
+std::string GetDefaultImageUrl(int index) {
+  if (index == 0)
+    return kZeroDefaultUrl;
+  return GetDefaultImageString(index, kDefaultUrlPrefix);
+}
+
+bool IsDefaultImageUrl(const std::string& url, int* image_id) {
+  if (url == kZeroDefaultUrl) {
+    *image_id = 0;
+    return true;
+  }
+  return IsDefaultImageString(url, kDefaultUrlPrefix, image_id);
+}
+
+const gfx::ImageSkia& GetDefaultImage(int index) {
+  DCHECK(index >= 0 && index < kDefaultImagesCount);
+  return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
+      kDefaultImageResourceIDs[index]);
+}
+
+base::string16 GetDefaultImageDescription(int index) {
+  DCHECK(index >= 0 && index < kDefaultImagesCount);
+  int string_id = kDefaultImageDescriptions[index];
+  if (string_id)
+    return l10n_util::GetStringUTF16(string_id);
+  else
+    return base::string16();
+}
+
+// Resource IDs of default user images.
+const int kDefaultImageResourceIDs[] = {
+    IDR_LOGIN_DEFAULT_USER,
+    IDR_LOGIN_DEFAULT_USER_1,
+    IDR_LOGIN_DEFAULT_USER_2,
+    IDR_LOGIN_DEFAULT_USER_3,
+    IDR_LOGIN_DEFAULT_USER_4,
+    IDR_LOGIN_DEFAULT_USER_5,
+    IDR_LOGIN_DEFAULT_USER_6,
+    IDR_LOGIN_DEFAULT_USER_7,
+    IDR_LOGIN_DEFAULT_USER_8,
+    IDR_LOGIN_DEFAULT_USER_9,
+    IDR_LOGIN_DEFAULT_USER_10,
+    IDR_LOGIN_DEFAULT_USER_11,
+    IDR_LOGIN_DEFAULT_USER_12,
+    IDR_LOGIN_DEFAULT_USER_13,
+    IDR_LOGIN_DEFAULT_USER_14,
+    IDR_LOGIN_DEFAULT_USER_15,
+    IDR_LOGIN_DEFAULT_USER_16,
+    IDR_LOGIN_DEFAULT_USER_17,
+    IDR_LOGIN_DEFAULT_USER_18,
+    IDR_LOGIN_DEFAULT_USER_19,
+    IDR_LOGIN_DEFAULT_USER_20,
+    IDR_LOGIN_DEFAULT_USER_21,
+    IDR_LOGIN_DEFAULT_USER_22,
+    IDR_LOGIN_DEFAULT_USER_23,
+    IDR_LOGIN_DEFAULT_USER_24,
+    IDR_LOGIN_DEFAULT_USER_25,
+    IDR_LOGIN_DEFAULT_USER_26,
+    IDR_LOGIN_DEFAULT_USER_27,
+    IDR_LOGIN_DEFAULT_USER_28,
+    IDR_LOGIN_DEFAULT_USER_29,
+    IDR_LOGIN_DEFAULT_USER_30,
+    IDR_LOGIN_DEFAULT_USER_31,
+    IDR_LOGIN_DEFAULT_USER_32,
+};
+
+const int kDefaultImageAuthorIDs[] = {
+    IDS_LOGIN_DEFAULT_USER_AUTHOR,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_1,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_2,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_3,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_4,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_5,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_6,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_7,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_8,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_9,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_10,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_11,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_12,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_13,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_14,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_15,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_16,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_17,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_18,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_19,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_20,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_21,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_22,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_23,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_24,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_25,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_26,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_27,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_28,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_29,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_30,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_31,
+    IDS_LOGIN_DEFAULT_USER_AUTHOR_32,
+};
+
+const int kDefaultImageWebsiteIDs[] = {
+    IDS_LOGIN_DEFAULT_USER_WEBSITE,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_1,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_2,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_3,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_4,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_5,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_6,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_7,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_8,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_9,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_10,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_11,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_12,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_13,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_14,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_15,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_16,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_17,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_18,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_19,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_20,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_21,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_22,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_23,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_24,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_25,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_26,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_27,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_28,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_29,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_30,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_31,
+    IDS_LOGIN_DEFAULT_USER_WEBSITE_32,
+};
+
+const int kDefaultImagesCount = arraysize(kDefaultImageResourceIDs);
+
+const int kFirstDefaultImageIndex = 19;
+
+// The order and the values of these constants are important for histograms
+// of different Chrome OS versions to be merged smoothly.
+const int kHistogramImageFromCamera = 19;
+const int kHistogramImageFromFile = 20;
+const int kHistogramImageOld = 21;
+const int kHistogramImageFromProfile = 22;
+const int kHistogramVideoFromCamera = 23;
+const int kHistogramVideoFromFile = 24;
+const int kHistogramImagesCount = kDefaultImagesCount + 6;
+
+int GetDefaultImageHistogramValue(int index) {
+  DCHECK(index >= 0 && index < kDefaultImagesCount);
+  // Create a gap in histogram values for
+  // [kHistogramImageFromCamera..kHistogramImageFromProfile] block to fit.
+  if (index < kHistogramImageFromCamera)
+    return index;
+  return index + 6;
+}
+
+}  // namespace user_manager