Revert of Change ComputedStyle::setUnique to take bool parameter.

third_party/WebKit/Source/core/css/SelectorChecker.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 866 matching lines @@
     case CSSSelector::PseudoVisited:
       return element.isLink() &&
              context.visitedMatchType == VisitedMatchEnabled;
     case CSSSelector::PseudoDrag:
       if (m_mode == SharingRules)
         return true;
       if (m_mode == ResolvingStyle) {
         if (context.inRightmostCompound) {
           m_elementStyle->setAffectedByDrag();
         } else {
-          m_elementStyle->setUnique(true);
+          m_elementStyle->setUnique();
           element.setChildrenOrSiblingsAffectedByDrag();
         }
       }
       return element.isDragged();
     case CSSSelector::PseudoFocus:
       if (m_mode == SharingRules)
         return true;
       if (m_mode == ResolvingStyle) {
         if (context.inRightmostCompound) {
           m_elementStyle->setAffectedByFocus();
         } else {
-          m_elementStyle->setUnique(true);
+          m_elementStyle->setUnique();
           element.setChildrenOrSiblingsAffectedByFocus();
         }
       }
       return matchesFocusPseudoClass(element);
     case CSSSelector::PseudoHover:
       if (m_mode == SharingRules)
         return true;
       if (m_mode == ResolvingStyle) {
         if (context.inRightmostCompound) {
           m_elementStyle->setAffectedByHover();
         } else {
-          m_elementStyle->setUnique(true);
+          m_elementStyle->setUnique();
           element.setChildrenOrSiblingsAffectedByHover();
         }
       }
       if (!shouldMatchHoverOrActive(context))
         return false;
       if (InspectorInstrumentation::forcePseudoState(&element,
                                                      CSSSelector::PseudoHover))
         return true;
       return element.isHovered();
     case CSSSelector::PseudoActive:
       if (m_mode == SharingRules)
         return true;
       if (m_mode == ResolvingStyle) {
         if (context.inRightmostCompound) {
           m_elementStyle->setAffectedByActive();
         } else {
-          m_elementStyle->setUnique(true);
+          m_elementStyle->setUnique();
           element.setChildrenOrSiblingsAffectedByActive();
         }
       }
       if (!shouldMatchHoverOrActive(context))
         return false;
       if (InspectorInstrumentation::forcePseudoState(&element,
                                                      CSSSelector::PseudoActive))
         return true;
       return element.isActive();
     case CSSSelector::PseudoEnabled:
@@ skipping 369 matching lines @@
 }
 
 bool SelectorChecker::matchesFocusPseudoClass(const Element& element) {
   if (InspectorInstrumentation::forcePseudoState(const_cast<Element*>(&element),
                                                  CSSSelector::PseudoFocus))
     return true;
   return element.isFocused() && isFrameFocused(element);
 }
 
 }  // namespace blink