Status Area disappears during Multi-User Sign-in

Update StatusAreaLayoutManager to acccount for animations when it is updating its bounds.

TEST=ShelfLayoutManagerTest.ShelfAutoHideToggleDuringAnimationUpdatesBounds
BUG=386069

Review URL: https://codereview.chromium.org/343193007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279504 0039d316-1c4b-4281-b951-d872f2087c98

ash/shelf/shelf_layout_manager_unittest.cc

@@ -2056,4 +2056,24 @@ TEST_F(ShelfLayoutManagerTest, MaximizeModeResetsAutohide) {
   EXPECT_EQ(SHELF_AUTO_HIDE_BEHAVIOR_NEVER, shelf->auto_hide_behavior());
 }
 
+// Tests that when the auto-hide behaviour is changed during an animation the
+// target bounds are updated to reflect the new state.
+TEST_F(ShelfLayoutManagerTest,
+       ShelfAutoHideToggleDuringAnimationUpdatesBounds) {
+  ShelfLayoutManager* shelf_manager = GetShelfLayoutManager();
+  aura::Window* status_window = GetShelfWidget()->status_area_widget()->
+      GetNativeView();
+  gfx::Rect initial_bounds = status_window->bounds();
+
+  ui::ScopedAnimationDurationScaleMode regular_animations(
+      ui::ScopedAnimationDurationScaleMode::SLOW_DURATION);
+  shelf_manager->SetAutoHideBehavior(SHELF_AUTO_HIDE_ALWAYS_HIDDEN);
+  gfx::Rect hide_target_bounds =  status_window->GetTargetBounds();
+  EXPECT_GT(hide_target_bounds.y(), initial_bounds.y());
+
+  shelf_manager->SetAutoHideBehavior(SHELF_AUTO_HIDE_BEHAVIOR_NEVER);
+  gfx::Rect reshow_target_bounds = status_window->GetTargetBounds();
+  EXPECT_EQ(initial_bounds, reshow_target_bounds);
+}
+
 }  // namespace ash

ash/wm/status_area_layout_manager.cc

@@ -55,9 +55,9 @@ void StatusAreaLayoutManager::SetChildBounds(
     return;
   }
 
-  // If the size matches, no need to do anything. We don't check the location as
-  // that is managed by the shelf.
-  if (requested_bounds == child->bounds())
+  // If the bounds match, no need to do anything. Check for target bounds to
+  // ensure any active animation is retargeted.
+  if (requested_bounds == child->GetTargetBounds())
     return;
 
   SetChildBoundsDirect(child, requested_bounds);