[Chrome] Support NumCopies print preset

chrome/renderer/pepper/pepper_printing_renderer_host.h

+// Copyright (c) 2014 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.
+
+#ifndef CHROME_RENDERER_PEPPER_PEPPER_PRINTING_RENDERER_HOST_H_
+#define CHROME_RENDERER_PEPPER_PEPPER_PRINTING_RENDERER_HOST_H_
+
+#include <string>
+
+#include "ppapi/host/resource_host.h"
+
+struct PP_PrintPresetOptions_Dev;
+
+namespace content {
+class RendererPpapiHost;
+}
+
+namespace ppapi {
+namespace host {
+struct HostMessageContext;
+}
+}
+
+class PepperPrintingRendererHost : public ppapi::host::ResourceHost {
+ public:
+  PepperPrintingRendererHost(content::RendererPpapiHost* host,
+                             PP_Instance instance,
+                             PP_Resource resource);
+  virtual ~PepperPrintingRendererHost();
+
+  virtual int32_t OnResourceMessageReceived(
+      const IPC::Message& msg,
+      ppapi::host::HostMessageContext* context) OVERRIDE;
+
+ private:
+  int32_t OnHostMsgSetPrintPresetOptionsFromDocument(
+      ppapi::host::HostMessageContext* context,
+      PP_PrintPresetOptions_Dev& print_options);
+
+  content::RendererPpapiHost* host_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperPrintingRendererHost);
+};
+
+#endif  // CHROME_RENDERER_PEPPER_PEPPER_PRINTING_RENDERER_HOST_H_