Refactoring and fixing bugs in Customize tray.

Change-Id: Ia37d3033d64036fd09f5f33443eb9f575e311c7c
diff --git a/src/com/android/launcher2/HolographicOutlineHelper.java b/src/com/android/launcher2/HolographicOutlineHelper.java
index 1efc123..80548fb 100644
--- a/src/com/android/launcher2/HolographicOutlineHelper.java
+++ b/src/com/android/launcher2/HolographicOutlineHelper.java
@@ -32,6 +32,7 @@
     private final Paint mAlphaClipPaint = new Paint();
 
     public static final int MAX_OUTER_BLUR_RADIUS;
+    public static final int MIN_OUTER_BLUR_RADIUS;
 
     private static final BlurMaskFilter sExtraThickOuterBlurMaskFilter;
     private static final BlurMaskFilter sThickOuterBlurMaskFilter;
@@ -48,6 +49,7 @@
     static {
         final float scale = LauncherApplication.getScreenDensity();
 
+        MIN_OUTER_BLUR_RADIUS = (int) (scale * 1.0f);
         MAX_OUTER_BLUR_RADIUS = (int) (scale * 12.0f);
 
         sExtraThickOuterBlurMaskFilter = new BlurMaskFilter(scale * 12.0f, BlurMaskFilter.Blur.OUTER);