Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/chromeos/wallpaper_thumbnail_source2.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/options2/chromeos/wallpaper_thumbnail_source2.h"
-
-#include "ash/desktop_background/desktop_background_resources.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/memory/singleton.h"
-#include "base/string_number_conversions.h"
-#include "base/string_piece.h"
-#include "base/string_util.h"
-#include "base/stringprintf.h"
-#include "base/threading/thread_restrictions.h"
-#include "chrome/browser/chromeos/login/user_manager.h"
-#include "chrome/browser/io_thread.h"
-#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
-#include "chrome/common/url_constants.h"
-#include "content/public/browser/browser_thread.h"
-#include "grit/ui_resources.h"
-#include "net/base/mime_util.h"
-#include "ui/base/layout.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/codec/png_codec.h"
-
-namespace chromeos {
-namespace options2 {
-
-namespace {
-
-const char kDefaultWallpaperPrefix[] = "default_";
-const char kCustomWallpaperPrefix[] = "custom_";
-
-// Parse an integer from |path| and save it to |index|. For example, default_20
-// will set |index| to 20.
-// |path| and |index| must not be NULL.
-bool ParseIndexFromPath(const std::string& path, int* index) {
-  // TODO(bshe): We should probably save a string instead of index for
-  // extensibility. Remove this function when we migrate to string preference.
-  DCHECK(index);
-  if (!StartsWithASCII(path, kDefaultWallpaperPrefix, false))
-    return false;
-  return base::StringToInt(base::StringPiece(path.begin() +
-      strlen(kDefaultWallpaperPrefix), path.end()), index);
-}
-
-// Convert |path| to corresponding IDR. Return -1 if the path is invalid.
-// |path| must not be NULL.
-int PathToIDR(const std::string& path) {
-  int idr = -1;
-  int index = ash::GetInvalidWallpaperIndex();
-  if (ParseIndexFromPath(path, &index))
-    idr = ash::GetWallpaperInfo(index).thumb_id;
-  return idr;
-}
-
-// True if |path| is a custom wallpaper thumbnail URL and set |email| parsed
-// from |path|.
-// custom url = "custom_|email|?date" where date is current time.
-bool IsCustomWallpaperPath(const std::string& path, std::string* email) {
-  if (!StartsWithASCII(path, kCustomWallpaperPrefix, false))
-    return false;
-
-  std::string sub_path = path.substr(strlen(kCustomWallpaperPrefix));
-  *email = sub_path.substr(0, sub_path.find_first_of("?"));
-  return true;
-}
-
-}  // namespace
-
-std::string GetDefaultWallpaperThumbnailURL(int index) {
-  return StringPrintf("%s%s%d", chrome::kChromeUIWallpaperThumbnailURL,
-                      kDefaultWallpaperPrefix, index);
-}
-
-bool IsDefaultWallpaperURL(const std::string url, int* wallpaper_index) {
-  DCHECK(wallpaper_index);
-  *wallpaper_index = ash::GetInvalidWallpaperIndex();
-  if (!StartsWithASCII(url, chrome::kChromeUIWallpaperThumbnailURL, false))
-      return false;
-  std::string sub_path = url.substr(strlen(
-      chrome::kChromeUIWallpaperThumbnailURL));
-  return ParseIndexFromPath(sub_path, wallpaper_index);
-}
-
-WallpaperThumbnailSource::WallpaperThumbnailSource()
-    : DataSource(chrome::kChromeUIWallpaperThumbnailHost, NULL) {
-}
-
-WallpaperThumbnailSource::~WallpaperThumbnailSource() {
-}
-
-void WallpaperThumbnailSource::StartDataRequest(const std::string& path,
-                                                bool is_incognito,
-                                                int request_id) {
-  std::string email;
-  if (IsCustomWallpaperPath(path, &email)) {
-    const chromeos::User* user = chromeos::UserManager::Get()->FindUser(email);
-    if (user) {
-      std::vector<unsigned char> data;
-      gfx::PNGCodec::EncodeBGRASkBitmap(user->wallpaper_thumbnail(),
-                                        false, &data);
-      SendResponse(request_id, new base::RefCountedBytes(data));
-      return;
-    }
-  }
-  int idr = PathToIDR(path);
-  if (idr != -1) {
-    DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
-    const ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-    SendResponse(request_id, rb.LoadDataResourceBytes(idr,
-        ui::SCALE_FACTOR_100P));
-  }
-}
-
-std::string WallpaperThumbnailSource::GetMimeType(const std::string&) const {
-  return "images/png";
-}
-
-}  // namespace options2
-}  // namespace chromeos