Use FocusParams in FocusController::setFocusedElement and Document::setFocusedElement arguments.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2800 matching lines @@
     page()->focusController().focusDocumentView(toCoreFrame(frame));
 }
 
 void WebViewImpl::setInitialFocus(bool reverse)
 {
     if (!m_page)
         return;
     Frame* frame = page()->focusController().focusedOrMainFrame();
     if (frame->isLocalFrame()) {
         if (Document* document = toLocalFrame(frame)->document())
-            document->setFocusedElement(nullptr);
+            document->clearFocusedElement();
     }
     page()->focusController().setInitialFocus(reverse ? WebFocusTypeBackward : WebFocusTypeForward);
 }
 
 void WebViewImpl::clearFocusedElement()
 {
     RefPtrWillBeRawPtr<Frame> frame = focusedCoreFrame();
     if (!frame || !frame->isLocalFrame())
         return;
 
     LocalFrame* localFrame = toLocalFrame(frame.get());
 
     RefPtrWillBeRawPtr<Document> document = localFrame->document();
     if (!document)
         return;
 
     RefPtrWillBeRawPtr<Element> oldFocusedElement = document->focusedElement();
-
-    // Clear the focused node.
-    document->setFocusedElement(nullptr);
-
+    document->clearFocusedElement();
     if (!oldFocusedElement)
         return;
 
     // If a text field has focus, we need to make sure the selection controller
     // knows to remove selection from it. Otherwise, the text field is still
     // processing keyboard events even though focus has been moved to the page and
     // keystrokes get eaten as a result.
     if (oldFocusedElement->isContentEditable() || oldFocusedElement->isTextFormControl())
         localFrame->selection().clear();
 }
@@ skipping 1613 matching lines @@
     if (m_pageColorOverlay)
         m_pageColorOverlay->update();
     if (InspectorOverlay* overlay = inspectorOverlay()) {
         PageOverlay* inspectorPageOverlay = overlay->pageOverlay();
         if (inspectorPageOverlay)
             inspectorPageOverlay->update();
     }
 }
 
 } // namespace blink