Extract more of the mouse logic from EventHandler

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 3345 matching lines @@
       frame = toLocalFrame(frame->tree().parent());
       // Srcdoc documents cannot be top-level documents, by definition,
       // because they need to be contained in iframes with the srcdoc.
       DCHECK(frame);
     }
     referrerDocument = frame->document();
   }
   return referrerDocument->m_url.strippedForUseAsReferrer();
 }
 
-MouseEventWithHitTestResults Document::prepareMouseEvent(
+MouseEventWithHitTestResults Document::performMouseEventHitTest(
     const HitTestRequest& request,
     const LayoutPoint& documentPoint,
     const PlatformMouseEvent& event) {
   DCHECK(layoutViewItem().isNull() || layoutViewItem().isLayoutView());
 
   // LayoutView::hitTest causes a layout, and we don't want to hit that until
   // the first layout because until then, there is nothing shown on the screen -
   // the user can't have intentionally clicked on something belonging to this
   // page.  Furthermore, mousemove events before the first layout should not
   // lead to a premature layout() happening, which could show a flash of white.
@@ skipping 2992 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif