Print headers and footers with WebKit.

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 26678f47de0640355fb8fe37cb070f07c0382834..6a0f78d80c991da9940000c257ef659469fb84fc 100644
--- a/chrome/renderer/print_web_view_helper.h
+++ b/chrome/renderer/print_web_view_helper.h
@@ -292,6 +292,17 @@ class PrintWebViewHelper
                    printing::Metafile* metafile);
 #endif  // defined(OS_WIN)
 
+  // Renders page contents from |frame| to |content_area| of |canvas|.
+  // |page_number| is zero-based.
+  // When method is called, canvas should be setup to draw to |canvas_area|
+  // with |scale_factor|.
+  static float RenderPageContent(WebKit::WebFrame* frame,
+                                 int page_number,
+                                 const gfx::Rect& canvas_area,
+                                 const gfx::Rect& content_area,
+                                 double scale_factor,
+                                 WebKit::WebCanvas* canvas);
+
   // Helper methods -----------------------------------------------------------
 
   bool CopyAndPrint(WebKit::WebFrame* web_frame);