Defining a dark theme for launcher

> Removing the code for LIGHT_STATUS_BAR as that will be controlled by the theme
> Updating icon cache to always use transparent background for low-res, as the
theme can change the bg color

Change-Id: Iab64ec29cab629ee515af22ec15b95d3f40a9df5
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index c0946a0..78030ce 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -542,11 +542,8 @@
     }
 
     public void setFolderLeaveBehindCell(int x, int y) {
-
-        DeviceProfile grid = mLauncher.getDeviceProfile();
         View child = getChildAt(x, y);
-
-        mFolderLeaveBehind.setup(getResources().getDisplayMetrics(), grid, null,
+        mFolderLeaveBehind.setup(mLauncher, null,
                 child.getMeasuredWidth(), child.getPaddingTop());
 
         mFolderLeaveBehind.delegateCellX = x;