Implement browser side of PPB_Printing resource.

content/browser/renderer_host/pepper/pepper_printing_host.h

Index: content/browser/renderer_host/pepper/pepper_printing_host.h
diff --git a/content/browser/renderer_host/pepper/pepper_printing_host.h b/content/browser/renderer_host/pepper/pepper_printing_host.h
new file mode 100644
index 0000000000000000000000000000000000000000..5b867168904282108610822c61572a28576cb8d3
--- /dev/null
+++ b/content/browser/renderer_host/pepper/pepper_printing_host.h
@@ -0,0 +1,49 @@
+// 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.
+
+#ifndef CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_PRINTING_HOST_H_
+#define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_PRINTING_HOST_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "content/browser/renderer_host/pepper/pepper_print_settings_manager.h"
+#include "content/common/content_export.h"
+#include "ppapi/host/resource_host.h"
+#include "ppapi/proxy/resource_message_params.h"
+
+namespace content {
+
+class CONTENT_EXPORT PepperPrintingHost : public ppapi::host::ResourceHost {
+ public:
+  PepperPrintingHost(
+      ppapi::host::PpapiHost* host,
+      PP_Instance instance,
+      PP_Resource resource,
+      scoped_ptr<PepperPrintSettingsManager> print_settings_manager);
+  virtual ~PepperPrintingHost();
+
+  // ppapi::host::ResourceHost implementation.
+  virtual int32_t OnResourceMessageReceived(
+      const IPC::Message& msg,
+      ppapi::host::HostMessageContext* context) OVERRIDE;
+
+ private:
+  int32_t OnMsgGetDefaultPrintSettings(
+      ppapi::host::HostMessageContext* context);
+
+  void PrintSettingsCallback(
+      ppapi::proxy::ResourceMessageReplyParams reply_params,
+      PepperPrintSettingsManager::Result result);
+
+  scoped_ptr<PepperPrintSettingsManager> print_settings_manager_;
+
+  base::WeakPtrFactory<PepperPrintingHost> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperPrintingHost);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_PRINTING_HOST_H_