Switch to WebFrame from the WebKit API....

chrome/renderer/print_web_view_helper_mac.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/print_web_view_helper.h"
 
 #include "base/logging.h"
 
+using WebKit::WebFrame;
+
 void PrintWebViewHelper::Print(WebFrame* frame, bool script_initiated) {
   // TODO(port): print not implemented
   NOTIMPLEMENTED();
 }
 
 void PrintWebViewHelper::PrintPage(const ViewMsg_PrintPage_Params& params,
                                    const gfx::Size& canvas_size,
                                    WebFrame* frame) {
   // TODO(port) implement printing
   NOTIMPLEMENTED();
 }