Add fillRule option for hit regions on canvas2d.

Source/core/html/canvas/HitRegion.h

 // Copyright 2014 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.
 
 #ifndef HitRegion_h
 #define HitRegion_h
 
 #include "bindings/v8/Dictionary.h"
 #include "core/dom/Element.h"
 #include "platform/graphics/Path.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 struct HitRegionOptions {
     STACK_ALLOCATED();
 
 public:
     String id;
     RefPtrWillBeMember<Element> control;
     Path path;
+    WindRule fillRule;
 };
 
 class HitRegion FINAL : public RefCountedWillBeGarbageCollectedFinalized<HitRegion> {
 public:
     static PassRefPtrWillBeRawPtr<HitRegion> create(const HitRegionOptions& options)
     {
         return adoptRefWillBeNoop(new HitRegion(options));
     }
 
     virtual ~HitRegion() { }
 
     void removePixels(const Path&);
     void updateAccessibility(Element* canvas);
 
     bool contains(const LayoutPoint&) const;
 
     const String& id() const { return m_id; }
     const Path& path() const { return m_path; }
     Element* control() const { return m_control.get(); }
+    WindRule fillRule() const { return m_fillRule; }
 
     void trace(Visitor*);
 
 private:
     explicit HitRegion(const HitRegionOptions&);
 
     String m_id;
     RefPtrWillBeMember<Element> m_control;
     Path m_path;
+    WindRule m_fillRule;
 };
 
 class HitRegionManager FINAL : public NoBaseWillBeGarbageCollected<HitRegionManager> {
     WTF_MAKE_NONCOPYABLE(HitRegionManager);
     DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(HitRegionManager)
 public:
     static PassOwnPtrWillBeRawPtr<HitRegionManager> create() { return adoptPtrWillBeNoop(new HitRegionManager()); }
 
     void addHitRegion(PassRefPtrWillBeRawPtr<HitRegion>);
 
@@ skipping 20 matching lines @@
     typedef WillBeHeapHashMap<RefPtrWillBeMember<Element>, RefPtrWillBeMember<HitRegion> > HitRegionControlMap;
 
     HitRegionList m_hitRegionList;
     HitRegionIdMap m_hitRegionIdMap;
     HitRegionControlMap m_hitRegionControlMap;
 };
 
 } // namespace WebCore
 
 #endif