[cros] Encode user images when set from WebUI (regression fix).

chrome/browser/chromeos/login/wallpaper_manager.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/wallpaper_manager.h"
 
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/desktop_background/desktop_background_resources.h"
 #include "ash/shell.h"
 #include "base/logging.h"
@@ skipping 95 matching lines @@
 }
 
 void WallpaperManager::SetLastSelectedUser(
     const std::string& last_selected_user) {
   last_selected_user_ = last_selected_user;
 }
 
 void WallpaperManager::SetWallpaperFromFilePath(const std::string& path,
                                                 ash::WallpaperLayout layout) {
   image_loader_->Start(
-      path, 0, false,
+      path, 0,
       base::Bind(&WallpaperManager::OnWallpaperLoaded,
                  base::Unretained(this), layout));
 }
 
 void WallpaperManager::SetWallpaperFromImageSkia(
     const gfx::ImageSkia& wallpaper,
     ash::WallpaperLayout layout) {
   ash::Shell::GetInstance()->desktop_background_controller()->
       SetCustomWallpaper(wallpaper, layout);
 }
@@ skipping 69 matching lines @@
 
 void WallpaperManager::SystemResumed() {
   BatchUpdateWallpaper();
 }
 
 void WallpaperManager::TimezoneChanged(const icu::TimeZone& timezone) {
   RestartTimer();
 }
 
 }  // chromeos