Extract more of the mouse logic from EventHandler

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

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 474ff9128436f0d7bbf48f257d3190dda4a877c5..bf6b2ec2e7cc0b3d9532c6c99dcda7366683bb39 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -664,9 +664,10 @@ class CORE_EXPORT Document : public ContainerNode,
   TextLinkColors& textLinkColors() { return m_textLinkColors; }
   VisitedLinkState& visitedLinkState() const { return *m_visitedLinkState; }
 
-  MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&,
-                                                 const LayoutPoint&,
-                                                 const PlatformMouseEvent&);
+  MouseEventWithHitTestResults performMouseEventHitTest(
+      const HitTestRequest&,
+      const LayoutPoint&,
+      const PlatformMouseEvent&);
 
   /* Newly proposed CSS3 mechanism for selecting alternate
        stylesheets using the DOM. May be subject to change as