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..fb497dcec4ab8d161789f0ccb87bd79bdf7eb83c 100644
--- a/printing/printing_context_cairo.cc
+++ b/printing/printing_context_cairo.cc
@@ -100,6 +100,18 @@ PrintingContext::Result PrintingContextCairo::UseDefaultSettings() {
   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_);