Merge "Task thumbnail background is spilling to the front, making the BK 1px smaller to fix it" into tm-dev

quickstep/src/com/android/quickstep/views/TaskThumbnailView.java

@@ -300,7 +300,8 @@ public class TaskThumbnailView extends View {
         // Always draw the background since the snapshots might be translucent or partially empty
         // (For example, tasks been reparented out of dismissing split root when drag-to-dismiss
         // split screen).
-        canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, mBackgroundPaint);
+        canvas.drawRoundRect(x, y + 1, width, height - 1, cornerRadius,
+                cornerRadius, mBackgroundPaint);
 
         final boolean drawBackgroundOnly = mTask == null || mTask.isLocked || mBitmapShader == null
                 || mThumbnailData == null;