[ash-md] Animates a window closed while in overview mode

ash/wm/overview/scoped_overview_animation_settings_aura.cc

Index: ash/wm/overview/scoped_overview_animation_settings_aura.cc
diff --git a/ash/wm/overview/scoped_overview_animation_settings_aura.cc b/ash/wm/overview/scoped_overview_animation_settings_aura.cc
index f3c23da247a1d922f09bbeeb2222579b1f72da25..c65d14991d78d1eb1963c6a6da69abe22951cda4 100644
--- a/ash/wm/overview/scoped_overview_animation_settings_aura.cc
+++ b/ash/wm/overview/scoped_overview_animation_settings_aura.cc
@@ -16,6 +16,9 @@ namespace {
 // The time duration for transformation animations.
 const int kTransitionMilliseconds = 200;
 
+// The time duration for layout update. Only different with Material Design;

[tdanderson, 2016/06/28 15:28:02]

nit: ;

Also reading this I find "only different with material design" confusing. Where
do I see the non-MD value?

[varkha, 2016/06/28 23:50:37]

Done.

+const int kCloseTransitionMillisecondsMD = 200;

[tdanderson, 2016/06/28 15:28:02]

nit: it was suggested to me in a separate CL to use Md rather than MD as a
suffix to conform to chrome naming conventions. Though you're consistently using
MD throughout overview code so not a big deal leaving it as-is.

[varkha, 2016/06/28 23:50:37]

Done.

+
 // The time duration for widgets to fade in.
 const int kFadeInMilliseconds = 80;
 
@@ -29,6 +32,8 @@ base::TimeDelta GetAnimationDuration(OverviewAnimationType animation_type) {
     case OVERVIEW_ANIMATION_RESTORE_WINDOW:
     case OVERVIEW_ANIMATION_HIDE_WINDOW:
       return base::TimeDelta::FromMilliseconds(kTransitionMilliseconds);
+    case OVERVIEW_ANIMATION_CLOSE_SELECTOR_ITEM:
+      return base::TimeDelta::FromMilliseconds(kCloseTransitionMillisecondsMD);
   }
   NOTREACHED();
   return base::TimeDelta();
@@ -59,6 +64,11 @@ ScopedOverviewAnimationSettingsAura::ScopedOverviewAnimationSettingsAura(
           ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
       animation_settings_.SetTweenType(gfx::Tween::FAST_OUT_SLOW_IN);
       break;
+    case OVERVIEW_ANIMATION_CLOSE_SELECTOR_ITEM:
+      animation_settings_.SetPreemptionStrategy(
+          ui::LayerAnimator::ENQUEUE_NEW_ANIMATION);
+      animation_settings_.SetTweenType(gfx::Tween::EASE_OUT);
+      break;
     case OVERVIEW_ANIMATION_HIDE_WINDOW:
       animation_settings_.SetPreemptionStrategy(
           ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);