[Chrome] Support NumCopies print preset

content/renderer/pepper/pepper_plugin_instance_impl.cc

 // Copyright (c) 2012 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 "content/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1681 matching lines @@
   return GetPreferredPrintOutputFormat(&format);
 }
 
 bool PepperPluginInstanceImpl::IsPrintScalingDisabled() {
   DCHECK(plugin_print_interface_);
   if (!plugin_print_interface_)
     return false;
   return plugin_print_interface_->IsScalingDisabled(pp_instance()) == PP_TRUE;
 }
 
+int PepperPluginInstanceImpl::GetNumCopies() {
+  DCHECK(plugin_print_interface_);
+  if (!plugin_print_interface_)
+    return 1;
+  return plugin_print_interface_->NumCopies(pp_instance());
+}
+
 int PepperPluginInstanceImpl::PrintBegin(const WebPrintParams& print_params) {
   // Keep a reference on the stack. See NOTE above.
   scoped_refptr<PepperPluginInstanceImpl> ref(this);
   PP_PrintOutputFormat_Dev format;
   if (!GetPreferredPrintOutputFormat(&format)) {
     // PrintBegin should not have been called since SupportsPrintInterface
     // would have returned false;
     NOTREACHED();
     return 0;
   }
@@ skipping 1594 matching lines @@
     // Running out-of-process. Initiate an IPC call to notify the plugin
     // process.
     ppapi::proxy::HostDispatcher* dispatcher =
         ppapi::proxy::HostDispatcher::GetForInstance(pp_instance());
     dispatcher->Send(new PpapiMsg_PPPInstance_HandleDocumentLoad(
         ppapi::API_ID_PPP_INSTANCE, pp_instance(), pending_host_id, data));
   }
 }
 
 }  // namespace content