[Print Preview] Refactored code to support auto fit to page functionality.

chrome/renderer/print_web_view_helper_mac.mm

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/metrics/histogram.h"
@@ skipping 123 matching lines @@
 void PrintWebViewHelper::RenderPage(
     const PrintMsg_Print_Params& params, int page_number, WebFrame* frame,
     bool is_preview, printing::Metafile* metafile, gfx::Size* page_size,
     gfx::Rect* content_rect) {
   double scale_factor = 1.0f;
   double webkit_shrink_factor = frame->getPrintPageShrink(page_number);
   printing::PageSizeMargins page_layout_in_points;
   gfx::Rect content_area;
 
   ComputePageLayoutInPointsForCss(frame, page_number, params,
-                                  ignore_css_margins_, fit_to_page_,
-                                  &scale_factor, &page_layout_in_points);
+                                  ignore_css_margins_, &scale_factor,
+                                  &page_layout_in_points);
   GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, page_size,
                                           &content_area);
   if (content_rect)
     *content_rect = content_area;
 
   scale_factor *= webkit_shrink_factor;
   {
 #if defined(USE_SKIA)
     SkDevice* device = metafile->StartPageForVectorCanvas(
         *page_size, content_area, scale_factor);
@@ skipping 38 matching lines @@
                            print_preview_context_.total_page_count(),
                            scale_factor, page_layout_in_points,
                            *header_footer_info_);
     }
 #endif  // defined(USE_SKIA)
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   metafile->FinishPage();
 }