Delay instantiating InputDeviceCapabilities until accessed.

third_party/WebKit/Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003-2011, 2013, 2014 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 19 matching lines @@
 #include "core/HTMLNames.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSSelector.h"
 #include "core/dom/AXObjectCache.h"
 #include "core/dom/Attribute.h"
 #include "core/dom/ContainerNode.h"
 #include "core/dom/Document.h"
 #include "core/dom/ElementData.h"
 #include "core/dom/SpaceSplitString.h"
 #include "core/html/CollectionType.h"
+#include "core/input/InputDeviceCapabilities.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
 #include "public/platform/WebFocusType.h"
 
 namespace blink {
 
 class ElementAnimations;
 class Attr;
 class Attribute;
 class CSSStyleDeclaration;
 class ClientRect;
 class ClientRectList;
 class CompositorMutation;
 class CustomElementDefinition;
 class DOMStringMap;
 class DOMTokenList;
 class ElementRareData;
 class ElementShadow;
 class ExceptionState;
 class Image;
-class InputDeviceCapabilities;
 class Locale;
 class MutableStylePropertySet;
 class NamedNodeMap;
 class ElementIntersectionObserverData;
 class PseudoElement;
 class ResizeObservation;
 class ResizeObserver;
 class ScrollState;
 class ScrollStateCallback;
 class ScrollToOptions;
@@ skipping 29 matching lines @@
   Restore,
   None,
 };
 
 struct FocusParams {
   STACK_ALLOCATED();
 
   FocusParams() {}
   FocusParams(SelectionBehaviorOnFocus selection,
               WebFocusType focusType,
-              InputDeviceCapabilities* capabilities)
+              const InputDeviceCapabilitiesValue& capabilities)
       : selectionBehavior(selection),
         type(focusType),
         sourceCapabilities(capabilities) {}
 
   SelectionBehaviorOnFocus selectionBehavior =
       SelectionBehaviorOnFocus::Restore;
   WebFocusType type = WebFocusTypeNone;
-  Member<InputDeviceCapabilities> sourceCapabilities = nullptr;
+  InputDeviceCapabilitiesValue sourceCapabilities;
 };
 
 typedef HeapVector<Member<Attr>> AttrNodeList;
 
 class CORE_EXPORT Element : public ContainerNode {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static Element* create(const QualifiedName&, Document*);
   ~Element() override;
@@ skipping 398 matching lines @@
   // isFocusable(), isKeyboardFocusable(), and isMouseFocusable() check
   // whether the element can actually be focused. Callers should ensure
   // ComputedStyle is up to date;
   // e.g. by calling Document::updateLayoutTreeIgnorePendingStylesheets().
   bool isFocusable() const;
   virtual bool isKeyboardFocusable() const;
   virtual bool isMouseFocusable() const;
   bool isFocusedElementInDocument() const;
   Element* adjustedFocusedElementInTreeScope() const;
 
-  virtual void dispatchFocusEvent(
-      Element* oldFocusedElement,
-      WebFocusType,
-      InputDeviceCapabilities* sourceCapabilities = nullptr);
-  virtual void dispatchBlurEvent(
-      Element* newFocusedElement,
-      WebFocusType,
-      InputDeviceCapabilities* sourceCapabilities = nullptr);
-  virtual void dispatchFocusInEvent(
-      const AtomicString& eventType,
-      Element* oldFocusedElement,
-      WebFocusType,
-      InputDeviceCapabilities* sourceCapabilities = nullptr);
-  void dispatchFocusOutEvent(
-      const AtomicString& eventType,
-      Element* newFocusedElement,
-      InputDeviceCapabilities* sourceCapabilities = nullptr);
+  virtual void dispatchFocusEvent(Element* oldFocusedElement,
+                                  WebFocusType,
+                                  const InputDeviceCapabilitiesValue&);
+  virtual void dispatchBlurEvent(Element* newFocusedElement,
+                                 WebFocusType,
+                                 const InputDeviceCapabilitiesValue&);
+  virtual void dispatchFocusInEvent(const AtomicString& eventType,
+                                    Element* oldFocusedElement,
+                                    WebFocusType,
+                                    const InputDeviceCapabilitiesValue&);
+  void dispatchFocusOutEvent(const AtomicString& eventType,
+                             Element* newFocusedElement,
+                             const InputDeviceCapabilitiesValue&);
 
   virtual String innerText();
   String outerText();
   String innerHTML() const;
   String outerHTML() const;
   void setInnerHTML(const String&, ExceptionState& = ASSERT_NO_EXCEPTION);
   void setOuterHTML(const String&, ExceptionState&);
 
   Element* insertAdjacentElement(const String& where,
                                  Element* newChild,
@@ skipping 627 matching lines @@
 #define DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
   static T* create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T)                     \
   T* T::create(const QualifiedName& tagName, Document& document) { \
     return new T(tagName, document);                               \
   }
 
 }  // namespace blink
 
 #endif  // Element_h