Delay instantiating InputDeviceCapabilities until accessed.

third_party/WebKit/Source/core/events/FocusEvent.h

Index: third_party/WebKit/Source/core/events/FocusEvent.h
diff --git a/third_party/WebKit/Source/core/events/FocusEvent.h b/third_party/WebKit/Source/core/events/FocusEvent.h
index bc7d9f5f60785d4649876df7addc3c2dbe5f56e2..8fce1f9b69ec95a9a8b6abd5a92e695d6caf43d6 100644
--- a/third_party/WebKit/Source/core/events/FocusEvent.h
+++ b/third_party/WebKit/Source/core/events/FocusEvent.h
@@ -38,13 +38,14 @@ class FocusEvent final : public UIEvent {
  public:
   static FocusEvent* create() { return new FocusEvent; }
 
-  static FocusEvent* create(const AtomicString& type,
-                            bool canBubble,
-                            bool cancelable,
-                            AbstractView* view,
-                            int detail,
-                            EventTarget* relatedTarget,
-                            InputDeviceCapabilities* sourceCapabilities) {
+  static FocusEvent* create(
+      const AtomicString& type,
+      bool canBubble,
+      bool cancelable,
+      AbstractView* view,
+      int detail,
+      EventTarget* relatedTarget,
+      const InputDeviceCapabilitiesValue& sourceCapabilities) {
     return new FocusEvent(type, canBubble, cancelable, view, detail,
                           relatedTarget, sourceCapabilities);
   }
@@ -74,7 +75,7 @@ class FocusEvent final : public UIEvent {
              AbstractView*,
              int,
              EventTarget*,
-             InputDeviceCapabilities*);
+             const InputDeviceCapabilitiesValue&);
   FocusEvent(const AtomicString& type, const FocusEventInit&);
 
   Member<EventTarget> m_relatedTarget;