Use the icon bounds for all calculations.

- Fixes a drag and drop issue when the dynamic
grid scales icons down, due to the drawable bounds
not being equal to their bitmap sizes.

Change-Id: If7c68b51131de7bac3195a2619e22340f7789432

src/com/android/launcher3/AppsCustomizePagedView.java

@@ -915,6 +915,13 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
         return true;
     }
 
+    @Override
+    public float getIntrinsicIconScaleFactor() {
+        LauncherAppState app = LauncherAppState.getInstance();
+        DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
+        return (float) grid.allAppsIconSizePx / grid.iconSizePx;
+    }
+
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();