Print Preview: Hold on to tabs that do window.print(); window.close() until print preview finishes.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
===================================================================
--- chrome/browser/ui/browser.cc	(revision 99671)
+++ chrome/browser/ui/browser.cc	(working copy)
@@ -61,6 +61,7 @@
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/printing/background_printing_manager.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_setup_flow.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/printing/print_view_manager.h"
@@ -3447,6 +3448,19 @@
     return;
   }
 
+  // Various sites have a pattern which open a new window with output formatted
+  // for printing, then include a print button, which does window.print();
+  // window.close(); An example is printing Virgin America boarding
+  // pass. Instead of closing, when a print tab is associated with this tab,
+  // tell the BackgroundPrintingManager to own it, which causes it to be
+  // hidden and eventually closed when the print window is closed.
+  TabContentsWrapper* source_wrapper =
+      TabContentsWrapper::GetCurrentWrapperForContents(source);
+  if (g_browser_process->background_printing_manager()->
+      OwnInitiatorTab(source_wrapper)) {

[kmadhusu, 2011/09/07 23:21:10]

nit: Fix indentation.

[Lei Zhang, 2011/09/07 23:41:16]

Done.

+    return;
+  }
+
   int index = tab_handler_->GetTabStripModel()->GetWrapperIndex(source);
   if (index == TabStripModel::kNoTab) {
     NOTREACHED() << "CloseContents called for tab not in our strip";