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

printing/printing_context_cairo.cc

Index: printing/printing_context_cairo.cc
diff --git a/printing/printing_context_cairo.cc b/printing/printing_context_cairo.cc
index 5976878729d90938d73366eefddd5a1eaeb56b7c..0e12ee517bb245da8c034dc97fb5de40c1aa6cc6 100644
--- a/printing/printing_context_cairo.cc
+++ b/printing/printing_context_cairo.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -9,6 +9,7 @@
 #include <unicode/ulocdata.h>
 
 #include "base/logging.h"
+#include "base/values.h"
 #include "printing/native_metafile.h"
 #include "printing/print_settings_initializer_gtk.h"
 #include "printing/units.h"
@@ -100,6 +101,18 @@ PrintingContext::Result PrintingContextCairo::UseDefaultSettings() {
   return OK;
 }
 
+PrintingContext::Result PrintingContextCairo::UpdatePrintSettings(
+    const DictionaryValue* 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_);