CrOS Shelf: Re-enable disabled test in ShelfLayoutManager

Bug: 660928
Change-Id: I0c720054adb273646e4672ea467702a78c339766
Reviewed-on: https://chromium-review.googlesource.com/c/1454158Reviewed-by: Evan Stade <estade@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
Commit-Queue: Manu Cornet <manucornet@chromium.org>
Auto-Submit: Manu Cornet <manucornet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#629178}

ash/shelf/shelf_layout_manager_unittest.cc

@@ -1657,10 +1657,8 @@ TEST_F(ShelfLayoutManagerTest, SetAlignment) {
 
   StatusAreaWidget* status_area_widget = GetShelfWidget()->status_area_widget();
   gfx::Rect status_bounds(status_area_widget->GetWindowBoundsInScreen());
-  // TODO(estade): Re-enable this check. See crbug.com/660928.
-  //  EXPECT_GE(
-  //      status_bounds.width(),
-  //      status_area_widget->GetContentsView()->GetPreferredSize().width());
+  EXPECT_GE(status_bounds.width(),
+            status_area_widget->GetContentsView()->GetPreferredSize().width());
   EXPECT_EQ(layout_manager->GetIdealBounds().width(),
             display.GetWorkAreaInsets().left());
   EXPECT_EQ(0, display.GetWorkAreaInsets().top());