Delay instantiating InputDeviceCapabilities until accessed.

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

Index: third_party/WebKit/Source/core/html/HTMLFormControlElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLFormControlElement.cpp b/third_party/WebKit/Source/core/html/HTMLFormControlElement.cpp
index fdbe2cb92558dd4df9696321d76e20450e06b0ae..343d755721ab1c08841f111814c4bbea15f37d0b 100644
--- a/third_party/WebKit/Source/core/html/HTMLFormControlElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLFormControlElement.cpp
@@ -371,7 +371,7 @@ bool HTMLFormControlElement::shouldHaveFocusAppearance() const {
 void HTMLFormControlElement::dispatchFocusEvent(
     Element* oldFocusedElement,
     WebFocusType type,
-    InputDeviceCapabilities* sourceCapabilities) {
+    const InputDeviceCapabilitiesValue& sourceCapabilities) {
   if (type != WebFocusTypePage)
     m_wasFocusedByMouse = type == WebFocusTypeMouse;
   // ContainerNode::handleStyleChangeOnFocusStateChange() will inform
@@ -602,7 +602,7 @@ void HTMLFormControlElement::setCustomValidity(const String& error) {
 void HTMLFormControlElement::dispatchBlurEvent(
     Element* newFocusedElement,
     WebFocusType type,
-    InputDeviceCapabilities* sourceCapabilities) {
+    const InputDeviceCapabilitiesValue& sourceCapabilities) {
   if (type != WebFocusTypePage)
     m_wasFocusedByMouse = false;
   HTMLElement::dispatchBlurEvent(newFocusedElement, type, sourceCapabilities);