Print Preview: Hook up the print button to initiate printing without displaying a print dialog.

printing/printing_context_cairo.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "printing/printing_context_cairo.h"
 
 #include <gtk/gtk.h>
 #include <gtk/gtkprintunixdialog.h>
 #include <unicode/ulocdata.h>
 
@@ skipping 82 matching lines @@
           settings, page_setup, ranges_vector, false, &settings_);
 
   g_object_unref(settings);
   // |page_setup| is owned by dialog, so it does not need to be unref'ed.
   gtk_widget_destroy(dialog);
 #endif  // defined(OS_CHROMEOS)
 
   return OK;
 }
 
+PrintingContext::Result PrintingContextCairo::UpdatePrintSettings(
+    const std::string& job_settings, const PageRanges& ranges) {
+  DCHECK(!in_print_job_);
+
+  settings_.ranges = ranges;
+
+  NOTIMPLEMENTED();
+
+  return FAILED;
+}
+
+
 PrintingContext::Result PrintingContextCairo::InitWithSettings(
     const PrintSettings& settings) {
   DCHECK(!in_print_job_);
 
   settings_ = settings;
 
   NOTIMPLEMENTED();
 
   return FAILED;
 }
@@ skipping 47 matching lines @@
 
 void PrintingContextCairo::ReleaseContext() {
   // Nothing to do yet.
 }
 
 gfx::NativeDrawingContext PrintingContextCairo::context() const {
   return NULL;
 }
 
 }  // namespace printing