Resize and save custom wallpaper to large and small size

ash/desktop_background/desktop_background_controller.cc

Index: ash/desktop_background/desktop_background_controller.cc
diff --git a/ash/desktop_background/desktop_background_controller.cc b/ash/desktop_background/desktop_background_controller.cc
index 83b486c4808ea4692a786d0f352ccc178be46ea8..0bd8b3542efdffc1fbf6f4ec800ef6d77c570ab8 100644
--- a/ash/desktop_background/desktop_background_controller.cc
+++ b/ash/desktop_background/desktop_background_controller.cc
@@ -26,8 +26,6 @@
 namespace ash {
 namespace {
 
-const int kSmallWallpaperMaximalWidth = 1366;
-const int kSmallWallpaperMaximalHeight = 800;
 const SkColor kTransparentColor = SkColorSetARGB(0x00, 0x00, 0x00, 0x00);
 
 internal::RootWindowLayoutManager* GetRootWindowLayoutManager(
@@ -37,6 +35,11 @@ internal::RootWindowLayoutManager* GetRootWindowLayoutManager(
 }
 }  // namespace
 
+const int kSmallWallpaperMaxWidth = 1366;
+const int kSmallWallpaperMaxHeight = 800;
+const int kLargeWallpaperMaxWidth = 2560;
+const int kLargeWallpaperMaxHeight = 1700;
+
 // Stores the current wallpaper data.
 struct DesktopBackgroundController::WallpaperData {
   WallpaperData(int index, WallpaperResolution resolution)
@@ -228,8 +231,8 @@ WallpaperResolution DesktopBackgroundController::GetAppropriateResolution() {
   for (Shell::RootWindowList::iterator iter = root_windows.begin();
        iter != root_windows.end(); ++iter) {
     gfx::Size root_window_size = (*iter)->GetHostSize();
-    if (root_window_size.width() > kSmallWallpaperMaximalWidth ||
-        root_window_size.height() > kSmallWallpaperMaximalHeight)
+    if (root_window_size.width() > kSmallWallpaperMaxWidth ||
+        root_window_size.height() > kSmallWallpaperMaxHeight)
       resolution = LARGE;
   }
   return resolution;