Move setToolTipText related functions from RenderView to RenderWidget.

content/renderer/render_view.cc

Index: content/renderer/render_view.cc
diff --git a/content/renderer/render_view.cc b/content/renderer/render_view.cc
index caf265d27c23868a79f3ec3ece6192ea65dbfcba..df41aa6d39a588f47cc7ae1ee76db13a05f3b617 100644
--- a/content/renderer/render_view.cc
+++ b/content/renderer/render_view.cc
@@ -1684,11 +1684,6 @@ void RenderView::setKeyboardFocusURL(const WebURL& url) {
   UpdateTargetURL(focus_url_, mouse_over_url_);
 }
 
-void RenderView::setToolTipText(const WebString& text, WebTextDirection hint) {
-  Send(new ViewHostMsg_SetTooltipText(routing_id_, UTF16ToWideHack(text),
-                                      hint));
-}
-
 void RenderView::startDragging(const WebDragData& data,
                                WebDragOperationsMask mask,
                                const WebImage& image,