Replace ASSERT with DCHECK in core/

third_party/WebKit/Source/core/page/ContextMenuController.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Igalia S.L
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 115 matching lines @@
     ClearContextMenu();
     return;
   }
 
   menu_provider_->PopulateContextMenu(context_menu_.get());
   ShowContextMenu(nullptr);
 }
 
 std::unique_ptr<ContextMenu> ContextMenuController::CreateContextMenu(
     Event* event) {
-  ASSERT(event);
+  DCHECK(event);
 
   if (!event->IsMouseEvent())
     return nullptr;
 
   MouseEvent* mouse_event = ToMouseEvent(event);
   return CreateContextMenu(event->target()->ToNode()->GetDocument().GetFrame(),
                            LayoutPoint(mouse_event->AbsoluteLocation()));
 }
 
 std::unique_ptr<ContextMenu> ContextMenuController::CreateContextMenu(
@@ skipping 27 matching lines @@
 
 void ContextMenuController::ContextMenuItemSelected(
     const ContextMenuItem* item) {
   ASSERT(item->GetType() == kActionType ||
          item->GetType() == kCheckableActionType);
 
   if (item->Action() < kContextMenuItemBaseCustomTag ||
       item->Action() > kContextMenuItemLastCustomTag)
     return;
 
-  ASSERT(menu_provider_);
+  DCHECK(menu_provider_);
   menu_provider_->ContextMenuItemSelected(item);
 }
 
 }  // namespace blink