Added Header and Footer support using Skia

chrome/browser/ui/webui/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview_handler.cc
index 5e1c0aad2d9a924b6f9ba82ae42e17929bcdca20..43d0f13d81e13c60ea41b9de02485d28d2cfc4e0 100644
--- a/chrome/browser/ui/webui/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview_handler.cc
@@ -483,9 +483,33 @@ void PrintPreviewHandler::HandleGetPreview(const ListValue* args) {
     print_preview_ui->OnPrintPreviewFailed();
     return;
   }
+
+  bool display_header_footer;
+  if (!settings->GetBoolean(printing::kSettingHeaderFooter,
+                            &display_header_footer)) {
+    NOTREACHED();
+  }
+
+  // If headers and footers option is checked then retrieve the page title and
+  // url and send it to the renderer process.
+  DictionaryValue header_footer_info;
+  if (display_header_footer) {
+    header_footer_info.SetString(printing::kSettingHeaderFooterTitle,
+                                 initiator_tab->GetTitle());
+
+    std::string url;
+    NavigationEntry* entry = initiator_tab->controller().GetActiveEntry();
+    if (entry)
+      url = entry->virtual_url().spec();
+
+    header_footer_info.SetString(printing::kSettingHeaderFooterURL,

[dpapad, 2011/07/25 15:40:01]

Should this statement be within "if (entry)" block?

[Aayush Kumar, 2011/07/25 18:37:23]

No :)
On 2011/07/25 15:40:01, dpapad wrote:

[dpapad, 2011/07/25 20:14:20]

Please provide more info. Specifically, what happens if(!entry), do we just pass
an empty string?

[Aayush Kumar, 2011/07/25 22:31:16]

It turns out that the url can be an empty string, if it isn't valid.  According
to the doc of the spec() function - "If the URL is not valid, this will assert
and return the empty string (for safety in release builds, to keep them from
being misused which might be a security problem)."

On 2011/07/25 20:14:20, dpapad wrote:

+                                 url);
+  }
+
   VLOG(1) << "Print preview request start";
   RenderViewHost* rvh = initiator_tab->render_view_host();
-  rvh->Send(new PrintMsg_PrintPreview(rvh->routing_id(), *settings));
+  rvh->Send(new PrintMsg_PrintPreview(rvh->routing_id(), *settings,
+            header_footer_info));
 }
 
 void PrintPreviewHandler::HandlePrint(const ListValue* args) {