Set correct divider dimension for task menu options

Previously divider drawable dimension was set on height,
which only works when things are divided vertically.
For horizontal layouts, we need to set divider width.

Bug: 192398954
Test: Tested portrait + fake/real landscape
+ tablet

Change-Id: I5a63df9749bf37c3a563e923a1b4724aa17d9409

src/com/android/launcher3/touch/LandscapePagedViewHandler.java

@@ -29,6 +29,7 @@ import android.content.res.Resources;
 import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
+import android.graphics.drawable.ShapeDrawable;
 import android.util.FloatProperty;
 import android.view.MotionEvent;
 import android.view.Surface;
@@ -269,8 +270,11 @@ public class LandscapePagedViewHandler implements PagedOrientationHandler {
 
     @Override
     public void setTaskOptionsMenuLayoutOrientation(DeviceProfile deviceProfile,
-        LinearLayout taskMenuLayout) {
+            LinearLayout taskMenuLayout, int dividerSpacing,
+            ShapeDrawable dividerDrawable) {
         taskMenuLayout.setOrientation(LinearLayout.HORIZONTAL);
+        dividerDrawable.setIntrinsicWidth(dividerSpacing);
+        taskMenuLayout.setDividerDrawable(dividerDrawable);
     }
 
     @Override