Introduce a struct to store arguments of Element::focus().

third_party/WebKit/Source/core/page/FocusController.cpp

Index: third_party/WebKit/Source/core/page/FocusController.cpp
diff --git a/third_party/WebKit/Source/core/page/FocusController.cpp b/third_party/WebKit/Source/core/page/FocusController.cpp
index 4c0a57a3b63b0e56b4bb03fd089e4309c13444b1..2679a2bc2a2388d31e9524dc4449b976456ea25c 100644
--- a/third_party/WebKit/Source/core/page/FocusController.cpp
+++ b/third_party/WebKit/Source/core/page/FocusController.cpp
@@ -773,7 +773,7 @@ bool FocusController::advanceFocusInDocumentOrder(WebFocusType type, bool initia
         frame->selection().setSelection(newSelection);
     }
 
-    element->focus(false, type, sourceCapabilities);
+    element->focus(FocusParams(SelectionBehaviorOnFocus::Reset, type, sourceCapabilities));
     return true;
 }
 
@@ -1026,7 +1026,7 @@ bool FocusController::advanceFocusDirectionallyInContainer(Node* container, cons
     Element* element = toElement(focusCandidate.focusableNode);
     ASSERT(element);
 
-    element->focus(false, type);
+    element->focus(FocusParams(SelectionBehaviorOnFocus::Reset, type, nullptr));
     return true;
 }