Move GetPageSizeAndMarginsInPoints from linux code to generic code.

chrome/renderer/print_web_view_helper.h

Index: chrome/renderer/print_web_view_helper.h
diff --git a/chrome/renderer/print_web_view_helper.h b/chrome/renderer/print_web_view_helper.h
index 0c971b5ac8724113b6cc8e1f16098ef92f4eda86..4805de0a67d1635e22435217964c2e8e670e534a 100644
--- a/chrome/renderer/print_web_view_helper.h
+++ b/chrome/renderer/print_web_view_helper.h
@@ -125,6 +125,17 @@ class PrintWebViewHelper : public WebKit::WebViewClient,
   virtual void didStopLoading();
 
  private:
+  static void GetPageSizeAndMarginsInPoints(
+      WebKit::WebFrame* frame,
+      int page_index,
+      const ViewMsg_Print_Params& default_params,
+      double* content_width_in_points,
+      double* content_height_in_points,
+      double* margin_top_in_points,
+      double* margin_right_in_points,
+      double* margin_bottom_in_points,
+      double* margin_left_in_points);
+
   RenderView* render_view_;
   WebKit::WebView* print_web_view_;
   scoped_ptr<ViewMsg_PrintPages_Params> print_pages_params_;