Added Header and Footer support using Skia

chrome/renderer/print_web_view_helper_mac.mm

Index: chrome/renderer/print_web_view_helper_mac.mm
diff --git a/chrome/renderer/print_web_view_helper_mac.mm b/chrome/renderer/print_web_view_helper_mac.mm
index 3ceeb5d92ed139c98ab8aa71619b45df4d320612..9fdfa09123e680fceaafdad41b0b5a2ea3cc1d86 100644
--- a/chrome/renderer/print_web_view_helper_mac.mm
+++ b/chrome/renderer/print_web_view_helper_mac.mm
@@ -37,7 +37,7 @@ void PrintWebViewHelper::PrintPageInternal(
   // Render page for printing.
   gfx::Rect content_area(params.params.printable_size);
   RenderPage(params.params.printable_size, content_area, scale_factor,
-             page_number, page_slot, frame, &metafile);
+             page_number, page_slot, frame, false, &metafile);
   metafile.FinishDocument();
 
   PrintHostMsg_DidPrintPage_Params page_params;
@@ -82,7 +82,7 @@ void PrintWebViewHelper::RenderPreviewPage(int page_number) {
   base::TimeTicks begin_time = base::TimeTicks::Now();
   RenderPage(printParams.page_size, content_area, scale_factor, page_number,
              print_preview_context_.GetPageSlotForPage(page_number),
-             print_preview_context_.frame(), initial_render_metafile);
+             print_preview_context_.frame(), true, initial_render_metafile);
   print_preview_context_.RenderedPreviewPage(
       base::TimeTicks::Now() - begin_time);
 
@@ -115,7 +115,7 @@ void PrintWebViewHelper::RenderPreviewPage(int page_number) {
 void PrintWebViewHelper::RenderPage(
     const gfx::Size& page_size, const gfx::Rect& content_area,
     const float& scale_factor, int page_number, int page_slot, WebFrame* frame,
-    printing::Metafile* metafile) {
+    bool is_preview, printing::Metafile* metafile) {
 
   {
 #if defined(USE_SKIA)
@@ -138,7 +138,20 @@ void PrintWebViewHelper::RenderPage(
     CGContextRef cgContext = metafile->context();
     CGContextRef canvasPtr = cgContext;
 #endif
-    frame->printPage(page_number, canvasPtr);
+    float webkit_scale_factor = frame->printPage(page_number, canvasPtr);
+#if defined(USE_SKIA)
+    PrintMsg_Print_Params printParams = print_preview_context_.print_params();
+    if (is_preview && printParams.display_header_footer) {
+      PageSizeMargins page_layout_in_points;
+      GetPageSizeAndMarginsInPoints(frame, page_number, printParams,
+                                    &page_layout_in_points);
+      // |page_number| is 0-based, so 1 is added.
+      PrintHeaderAndFooter(device, *canvas, page_number + 1,
+                           print_preview_context_.total_page_count(),
+                           webkit_scale_factor, page_layout_in_points,
+                           *header_footer_info_);
+    }
+#endif  // USE_SKIA
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.