Added Header and Footer support using Skia

chrome/renderer/print_web_view_helper.cc

Index: chrome/renderer/print_web_view_helper.cc
diff --git a/chrome/renderer/print_web_view_helper.cc b/chrome/renderer/print_web_view_helper.cc
index a918de76ccc2cec1ba6b39ee0dae32ce91cbd898..03fe4d7f48fea12b266185a29fab85b078c79d41 100644
--- a/chrome/renderer/print_web_view_helper.cc
+++ b/chrome/renderer/print_web_view_helper.cc
@@ -84,6 +84,8 @@ bool PrintMsg_Print_Params_IsEqual(
          oldParams.params.supports_alpha_blend ==
              newParams.params.supports_alpha_blend &&
          oldParams.pages.size() == newParams.pages.size() &&
+         oldParams.params.header_footer ==
+             newParams.params.header_footer &&
          std::equal(oldParams.pages.begin(), oldParams.pages.end(),
              newParams.pages.begin());
 }
@@ -154,7 +156,8 @@ PrintWebViewHelper::PrintWebViewHelper(RenderView* render_view)
       context_menu_preview_node_(NULL),
       user_cancelled_scripted_print_count_(0),
       notify_browser_of_print_failure_(true),
-      preview_page_count_(0) {
+      preview_page_count_(0),
+      header_footer_interstice(7.2) {

[Lei Zhang, 2011/07/12 22:04:50]

where does this magical 7.2 value come from?

[Aayush Kumar, 2011/07/13 21:52:16]

Moved declaration of constant to job_constants.
On 2011/07/12 22:04:50, Lei Zhang wrote:

   is_preview_ = switches::IsPrintPreviewEnabled();
 }
 
@@ -262,10 +265,13 @@ void PrintWebViewHelper::OnPrintPages() {
     Print(frame, NULL);
 }
 
-void PrintWebViewHelper::OnPrintPreview(const DictionaryValue& settings) {
+void PrintWebViewHelper::OnPrintPreview(const DictionaryValue& settings,
+    const DictionaryValue& header_footer_info) {
   DCHECK(is_preview_);
   DCHECK(!context_menu_preview_node_.get() || !script_initiated_preview_frame_);
 
+  header_footer_info_ = header_footer_info.DeepCopy();
+
   if (script_initiated_preview_frame_) {
     // Script initiated print preview.
     PrintPreview(script_initiated_preview_frame_, NULL, settings);