Force all LayoutUnit construction to be explicit

third_party/WebKit/Source/core/html/HTMLSelectElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
@@ skipping 1901 matching lines @@
         return IntRect();
     // We don't use absoluteBoundingBoxRect() because it can return an IntRect
     // larger the actual size by 1px.
     return document().view()->contentsToViewport(roundedIntRect(layoutObject()->absoluteBoundingBoxFloatRect()));
 }
 
 LayoutUnit HTMLSelectElement::clientPaddingLeft() const
 {
     if (layoutObject() && layoutObject()->isMenuList())
         return toLayoutMenuList(layoutObject())->clientPaddingLeft();
-    return 0;
+    return LayoutUnit();
 }
 
 LayoutUnit HTMLSelectElement::clientPaddingRight() const
 {
     if (layoutObject() && layoutObject()->isMenuList())
         return toLayoutMenuList(layoutObject())->clientPaddingRight();
-    return 0;
+    return LayoutUnit();
 }
 
 void HTMLSelectElement::popupDidHide()
 {
     m_popupIsVisible = false;
     if (AXObjectCache* cache = document().existingAXObjectCache()) {
         if (layoutObject() && layoutObject()->isMenuList())
             cache->didHideMenuListPopup(toLayoutMenuList(layoutObject()));
     }
 }
@@ skipping 77 matching lines @@
     m_popupIsVisible = false;
     m_popup = nullptr;
 }
 
 void HTMLSelectElement::resetTypeAheadSessionForTesting()
 {
     m_typeAhead.resetSession();
 }
 
 } // namespace blink