Implement browser side of PPB_Printing resource.

content/browser/renderer_host/pepper/pepper_printing_host.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/browser/renderer_host/pepper/pepper_printing_host.h"
+
+#include "ppapi/c/dev/pp_print_settings_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/host/dispatch_host_message.h"
+#include "ppapi/host/host_message_context.h"
+#include "ppapi/host/ppapi_host.h"
+#include "ppapi/proxy/ppapi_messages.h"
+
+namespace content {
+
+namespace {
+
+void PrintSettingsCallback(

[brettw, 2012/09/18 21:41:38]

You should be able to make this a member function. Bind knows about weak ptr and
won't run the callback in this case.

[raymes, 2012/09/18 23:43:57]

Cool I wasn't sure about that.

Done.

+    base::WeakPtr<PepperPrintingHost> printing_host,
+    ppapi::proxy::ResourceMessageReplyParams reply_params,
+    PepperPrintSettingsManager::Result result) {
+  if (!printing_host.get())
+    return;
+  reply_params.set_result(result.second);
+  printing_host->host()->SendReply(reply_params,
+      PpapiPluginMsg_Printing_GetDefaultPrintSettingsReply(result.first));
+}
+
+}  // namespace
+
+PepperPrintingHost::PepperPrintingHost(
+    ppapi::host::PpapiHost* host,
+    PP_Instance instance,
+    PP_Resource resource,
+    scoped_ptr<PepperPrintSettingsManager> print_settings_manager)
+    : ResourceHost(host, instance, resource),
+      print_settings_manager_(print_settings_manager.Pass()),
+      weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+}
+
+PepperPrintingHost::~PepperPrintingHost() {
+}
+
+int32_t PepperPrintingHost::OnResourceMessageReceived(
+    const IPC::Message& msg,
+    ppapi::host::HostMessageContext* context) {
+  IPC_BEGIN_MESSAGE_MAP(PepperPrintingHost, msg)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(
+        PpapiHostMsg_Printing_GetDefaultPrintSettings,
+        OnMsgGetDefaultPrintSettings)
+  IPC_END_MESSAGE_MAP()
+  return PP_ERROR_FAILED;
+}
+
+int32_t PepperPrintingHost::OnMsgGetDefaultPrintSettings(
+    ppapi::host::HostMessageContext* context) {
+  print_settings_manager_->GetDefaultPrintSettings(
+      base::Bind(PrintSettingsCallback, weak_factory_.GetWeakPtr(),
+                 context->MakeReplyParams()));
+  return PP_OK_COMPLETIONPENDING;
+}
+
+}  // namespace content