Turning on drag and drop from app list to launcher by default

ash/launcher/launcher_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/launcher/launcher_view.h"
 
 #include <algorithm>
 
 #include "ash/ash_constants.h"
 #include "ash/ash_switches.h"
@@ skipping 1464 matching lines @@
       case TYPE_APP_PANEL:
         delegate_->ItemSelected(model_->items()[view_index], event);
         break;
 
       case TYPE_APP_LIST:
         Shell::GetInstance()->delegate()->RecordUserMetricsAction(
             UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON);
         Shell::GetInstance()->ToggleAppList(GetWidget()->GetNativeView());
         // By setting us as DnD recipient, the app list knows that we can
         // handle items.
-        if (CommandLine::ForCurrentProcess()->HasSwitch(
-                ash::switches::kAshDragAndDropAppListToLauncher))
+        if (!CommandLine::ForCurrentProcess()->HasSwitch(
+                 ash::switches::kAshDisableDragAndDropAppListToLauncher))
           Shell::GetInstance()->SetDragAndDropHostOfCurrentAppList(this);
         break;
     }
   }
 
   if (model_->items()[view_index].type != TYPE_APP_LIST)
     ShowListMenuForView(model_->items()[view_index], sender, event.flags());
 }
 
 bool LauncherView::ShowListMenuForView(const LauncherItem& item,
@@ skipping 146 matching lines @@
 bool LauncherView::ShouldShowTooltipForView(const views::View* view) const {
   if (view == GetAppListButtonView() &&
       Shell::GetInstance()->GetAppListWindow())
     return false;
   const LauncherItem* item = LauncherItemForView(view);
   return (!item || delegate_->ShouldShowTooltip(*item));
 }
 
 }  // namespace internal
 }  // namespace ash