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 3836161f9e975c26962ed48cf5a5f80d0cc5352d..c0188c6caf82bf17808e8fdc5a28b3d06d392963 100644
--- a/chrome/renderer/print_web_view_helper_mac.mm
+++ b/chrome/renderer/print_web_view_helper_mac.mm
@@ -17,6 +17,7 @@
 #if defined(USE_SKIA)
 #include "printing/metafile_skia_wrapper.h"
 #include "skia/ext/vector_canvas.h"
+#include "skia/ext/vector_platform_device_skia.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
 #endif
 
@@ -36,7 +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, frame, &metafile);
+             page_number, frame, &metafile, false);
   metafile.FinishDocument();
 
   PrintHostMsg_DidPrintPage_Params page_params;
@@ -68,7 +69,8 @@ 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_.frame(), print_preview_context_.metafile());
+             print_preview_context_.frame(), print_preview_context_.metafile(),
+             true);
   print_preview_context_.RenderedPreviewPage(
       base::TimeTicks::Now() - begin_time);
   PreviewPageRendered(page_number);
@@ -77,7 +79,7 @@ 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, WebFrame* frame,
-    printing::Metafile* metafile) {
+    printing::Metafile* metafile, bool is_preview) {
 
   {
 #if defined(USE_SKIA)
@@ -100,7 +102,21 @@ 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);
+      // The page_number count starts from 0, so we add 1.
+      PrintHeaderAndFooter(static_cast<skia::VectorPlatformDeviceSkia*>(device),
+                           canvas, page_number + 1,
+                           print_preview_context_.total_page_count(),
+                           webkit_scale_factor, page_layout_in_points,
+                           header_footer_info_);
+    }
+#endif
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.