[Chrome] Support NumCopies print preset

ppapi/proxy/printing_resource.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 "ppapi/proxy/printing_resource.h"
 
 #include "base/bind.h"
 #include "ipc/ipc_message.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/proxy/dispatch_reply_message.h"
@@ skipping 23 matching lines @@
     SendCreate(BROWSER, PpapiHostMsg_Printing_Create());
 
   Call<PpapiPluginMsg_Printing_GetDefaultPrintSettingsReply>(
       BROWSER,
       PpapiHostMsg_Printing_GetDefaultPrintSettings(),
       base::Bind(&PrintingResource::OnPluginMsgGetDefaultPrintSettingsReply,
           this, print_settings, callback));
   return PP_OK_COMPLETIONPENDING;
 }
 
+void PrintingResource::SetPrintPresetOptionsFromDocument(
+    const PP_PrintPresetOptions_Dev* print_options) {
+  if (!sent_create_to_browser())
+    SendCreate(RENDERER, PpapiHostMsg_PrintHost_Create());
+
+  Post(
+      RENDERER,
+      PpapiHostMsg_PrintHost_SetPrintPresetOptionsFromDocument(*print_options));
+}
+
 void PrintingResource::OnPluginMsgGetDefaultPrintSettingsReply(
     PP_PrintSettings_Dev* settings_out,
     scoped_refptr<TrackedCallback> callback,
     const ResourceMessageReplyParams& params,
     const PP_PrintSettings_Dev& settings) {
   if (params.result() == PP_OK)
     *settings_out = settings;
 
   // Notify the plugin of the new data.
   callback->Run(params.result());
   // DANGER: May delete |this|!
 }
 
 }  // namespace proxy
 }  // namespace ppapi