Removed the "Swipe to close in overview" feature.

ash/wm/overview/scoped_overview_animation_settings.cc

Index: ash/wm/overview/scoped_overview_animation_settings.cc
diff --git a/ash/wm/overview/scoped_overview_animation_settings.cc b/ash/wm/overview/scoped_overview_animation_settings.cc
index 3cb6bcbcc8b047400752bc09ee76f5059fc0a8b4..e0cf9776e9cbe09039d7aafdd716cc5d22ce2735 100644
--- a/ash/wm/overview/scoped_overview_animation_settings.cc
+++ b/ash/wm/overview/scoped_overview_animation_settings.cc
@@ -20,22 +20,15 @@ const int kTransitionMilliseconds = 200;
 // The time duration for widgets to fade in.
 const int kFadeInMilliseconds = 80;
 
-// The time duration for widgets to fade out.
-const int kFadeOutMilliseconds = 100;
-
 base::TimeDelta GetAnimationDuration(OverviewAnimationType animation_type) {
   switch (animation_type) {
     case OVERVIEW_ANIMATION_NONE:
-    case OVERVIEW_ANIMATION_SCROLL_SELECTOR_ITEM:
       return base::TimeDelta();
     case OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_IN:
       return base::TimeDelta::FromMilliseconds(kFadeInMilliseconds);
-    case OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_OUT:
-      return base::TimeDelta::FromMilliseconds(kFadeOutMilliseconds);
     case OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS:
     case OVERVIEW_ANIMATION_RESTORE_WINDOW:
     case OVERVIEW_ANIMATION_HIDE_WINDOW:
-    case OVERVIEW_ANIMATION_CANCEL_SELECTOR_ITEM_SCROLL:
       return base::TimeDelta::FromMilliseconds(kTransitionMilliseconds);
   }
   NOTREACHED();
@@ -51,7 +44,6 @@ ScopedOverviewAnimationSettings::ScopedOverviewAnimationSettings(
 
   switch (animation_type) {
     case OVERVIEW_ANIMATION_NONE:
-    case OVERVIEW_ANIMATION_SCROLL_SELECTOR_ITEM:
       animation_settings_.SetPreemptionStrategy(
           ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
       break;
@@ -63,10 +55,6 @@ ScopedOverviewAnimationSettings::ScopedOverviewAnimationSettings(
       animation_settings_.SetPreemptionStrategy(
           ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
       break;
-    case OVERVIEW_ANIMATION_ENTER_OVERVIEW_MODE_FADE_OUT:
-      animation_settings_.SetPreemptionStrategy(
-          ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
-      break;
     case OVERVIEW_ANIMATION_LAY_OUT_SELECTOR_ITEMS:
     case OVERVIEW_ANIMATION_RESTORE_WINDOW:
       animation_settings_.SetPreemptionStrategy(
@@ -77,11 +65,6 @@ ScopedOverviewAnimationSettings::ScopedOverviewAnimationSettings(
       animation_settings_.SetPreemptionStrategy(
           ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
       break;
-    case OVERVIEW_ANIMATION_CANCEL_SELECTOR_ITEM_SCROLL:
-      animation_settings_.SetPreemptionStrategy(
-          ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
-      animation_settings_.SetTweenType(gfx::Tween::EASE_IN_OUT);
-      break;
   }
   animation_settings_.SetTransitionDuration(
       GetAnimationDuration(animation_type));