Added C++ wrappers for PPB_HostResolver_Private interface.

ppapi/cpp/private/host_resolver_private.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/cpp/private/host_resolver_private.h"
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/cpp/instance_handle.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/module_impl.h"
+#include "ppapi/cpp/pass_ref.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_HostResolver_Private_0_1>() {
+  return PPB_HOSTRESOLVER_PRIVATE_INTERFACE_0_1;
+}
+
+}  // namespace
+
+HostResolverPrivate::HostResolverPrivate(const InstanceHandle& instance) {
+  if (has_interface<PPB_HostResolver_Private_0_1>()) {
+    PassRefFromConstructor(
+        get_interface<PPB_HostResolver_Private_0_1>()->Create(
+        instance.pp_instance()));
+  }
+}
+
+// static
+bool HostResolverPrivate::IsAvailable() {
+  return has_interface<PPB_HostResolver_Private_0_1>();
+}
+
+int32_t HostResolverPrivate::Resolve(const std::string& host,
+                                     uint16_t port,
+                                     const PP_HostResolver_Private_Hint& hint,
+                                     const CompletionCallback& callback) {
+  if (!has_interface<PPB_HostResolver_Private_0_1>())
+    return callback.MayForce(PP_ERROR_NOINTERFACE);
+  return get_interface<PPB_HostResolver_Private_0_1>()->Resolve(
+      pp_resource(),
+      host.c_str(),
+      port,
+      &hint,
+      callback.pp_completion_callback());
+}
+
+Var HostResolverPrivate::GetCanonicalName() {
+  if (!has_interface<PPB_HostResolver_Private_0_1>())
+    return Var(Var::Null());
+
+  PP_Var pp_canonical_name =
+      get_interface<PPB_HostResolver_Private_0_1>()->GetCanonicalName(
+          pp_resource());
+  return Var(PASS_REF, pp_canonical_name);
+}
+
+uint32_t HostResolverPrivate::GetSize() {
+  if (!has_interface<PPB_HostResolver_Private_0_1>())
+    return 0;
+  return get_interface<PPB_HostResolver_Private_0_1>()->GetSize(pp_resource());
+}
+
+bool HostResolverPrivate::GetNetAddress(uint32_t index,
+                                        PP_NetAddress_Private* address) {
+  if (!has_interface<PPB_HostResolver_Private_0_1>())
+    return false;
+  PP_Bool result = get_interface<PPB_HostResolver_Private_0_1>()->GetNetAddress(
+      pp_resource(), index, address);
+  return PP_ToBool(result);
+}
+
+}  // namespace pp