Adjust grid cell visualizations.

This is a partial revert of ag/17540098

Bug: 202971709
Test: manual
Change-Id: Ia6f863701c169709053980766337b3caae6fba76
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index d235180..f7133c4 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -148,7 +148,8 @@
     private boolean mVisualizeDropLocation = true;
     private RectF mVisualizeGridRect = new RectF();
     private Paint mVisualizeGridPaint = new Paint();
-    private int mGridVisualizationPadding;
+    private int mGridVisualizationPaddingX;
+    private int mGridVisualizationPaddingY;
     private int mGridVisualizationRoundingRadius;
     private float mGridAlpha = 0f;
     private int mGridColor = 0;
@@ -260,8 +261,10 @@
         mBackground.setAlpha(0);
 
         mGridColor = Themes.getAttrColor(getContext(), R.attr.workspaceAccentColor);
-        mGridVisualizationPadding =
-                res.getDimensionPixelSize(R.dimen.grid_visualization_cell_spacing);
+        mGridVisualizationPaddingX = res.getDimensionPixelSize(
+                R.dimen.grid_visualization_horizontal_cell_spacing);
+        mGridVisualizationPaddingY = res.getDimensionPixelSize(
+                R.dimen.grid_visualization_vertical_cell_spacing);
         mGridVisualizationRoundingRadius =
                 res.getDimensionPixelSize(R.dimen.grid_visualization_rounding_radius);
         mReorderPreviewAnimationMagnitude = (REORDER_PREVIEW_MAGNITUDE * deviceProfile.iconSizePx);
@@ -591,8 +594,8 @@
 
     protected void visualizeGrid(Canvas canvas) {
         DeviceProfile dp = mActivity.getDeviceProfile();
-        int paddingX = (int) Math.min((mCellWidth - dp.iconSizePx) / 2, mGridVisualizationPadding);
-        int paddingY = (int) Math.min((mCellHeight - dp.iconSizePx) / 2, mGridVisualizationPadding);
+        int paddingX = Math.min((mCellWidth - dp.iconSizePx) / 2, mGridVisualizationPaddingX);
+        int paddingY = Math.min((mCellHeight - dp.iconSizePx) / 2, mGridVisualizationPaddingY);
         mVisualizeGridRect.set(paddingX, paddingY,
                 mCellWidth - paddingX,
                 mCellHeight - paddingY);