Fixed a bug with low priotity notification coloring

When there where only low priority notifications, the topmost
notification was not colored correctly.

Bug: 16197778
Change-Id: I9fe8da79cfa78a3b94a3107c9e1af83b859a093e

packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java

@@ -171,7 +171,10 @@ public class StackScrollAlgorithm {
         for (int i = 0; i < childCount; i++) {
             View child = algorithmState.visibleChildren.get(i);
             StackScrollState.ViewState childViewState = resultState.getViewStateForView(child);
-            childViewState.belowSpeedBump = speedBumpIndex != -1 && i > speedBumpIndex;
+
+            // The speed bump can also be gone, so equality needs to be taken when comparing
+            // indices.
+            childViewState.belowSpeedBump = speedBumpIndex != -1 && i >= speedBumpIndex;
         }
     }