Add NetworkList/NetworkMonitor hooks and C++ wrappers.

ppapi/shared_impl/ppb_network_list_private_shared.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 <algorithm>
+
+#include "base/logging.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/shared_impl/ppb_network_list_private_shared.h"
+#include "ppapi/shared_impl/var.h"
+
+namespace ppapi {
+
+PPB_NetworkList_Private_Shared::PPB_NetworkList_Private_Shared(
+    ResourceObjectType type,
+    PP_Instance instance,
+    scoped_ptr<net::NetworkInterfaceList> list)
+    : Resource(type, instance),
+      list_(list.Pass()) {
+}
+
+PPB_NetworkList_Private_Shared::~PPB_NetworkList_Private_Shared() {
+}
+
+// static
+PP_Resource PPB_NetworkList_Private_Shared::Create(
+    ResourceObjectType type,
+    PP_Instance instance,
+    scoped_ptr<net::NetworkInterfaceList> list) {
+  scoped_refptr<PPB_NetworkList_Private_Shared> object(
+      new PPB_NetworkList_Private_Shared(type, instance, list.Pass()));
+  return object->GetReference();
+}
+
+::ppapi::thunk::PPB_NetworkList_Private_API*
+PPB_NetworkList_Private_Shared::AsPPB_NetworkList_Private_API() {
+  return this;
+}
+
+uint32_t PPB_NetworkList_Private_Shared::GetCount() {
+  return list_->size();
+}
+
+PP_Var PPB_NetworkList_Private_Shared::GetName(uint32_t index) {
+  if (index >= list_->size())
+    return StringVar::StringToPPVar("");

[dmichael (off chromium), 2012/03/01 18:29:54]

you might consider returning an Undefined Var to signal error

[Sergey Ulanov, 2012/03/02 03:01:37]

Done.

+  return StringVar::StringToPPVar(list_->at(index).name);
+}
+
+PP_NetworkListType_Private PPB_NetworkList_Private_Shared::GetType(
+    uint32_t index) {
+  // NetworkInterface struct doesn't privide this information yet.
+  NOTIMPLEMENTED();
+  return PP_NETWORKLIST_UNKNOWN;
+}
+
+PP_NetworkListState_Private PPB_NetworkList_Private_Shared::GetState(
+    uint32_t index) {
+  // Currently we get only interfaces that are active.

[dmichael (off chromium), 2012/03/01 18:29:54]

Then it doesn't really need to be an error condition, does it?

[Sergey Ulanov, 2012/03/02 03:01:37]

Done.

+  NOTIMPLEMENTED();
+  return PP_NETWORKLIST_UP;
+}
+
+int32_t PPB_NetworkList_Private_Shared::GetIpAddresses(
+    uint32_t index,
+    struct PP_NetAddress_Private addresses[],
+    uint32_t count) {
+  if (index >= list_->size())
+    return PP_ERROR_FAILED;
+
+  // Currently we get only one address for each interface.
+  if (count >= 1) {
+    DCHECK_LE(list_->at(index).address.size(), sizeof(addresses[0].data));
+    addresses[0].size = list_->at(index).address.size();
+    memcpy(addresses[0].data, &(list_->at(index).address.front()),

[dmichael (off chromium), 2012/03/01 18:29:54]

You should probably return early if the address doesn't fit, since DCHECK only
protects debug builds. Since this could over-write memory if it goes wrong, I
think we should be really careful.

[Sergey Ulanov, 2012/03/02 03:01:37]

Removed this code from this CL - will add it back in the CL with NeworkMonitor
implementation and fix it there.

+           addresses[0].size);
+  }
+  return 1;
+}
+
+PP_Var PPB_NetworkList_Private_Shared::GetDisplayName(uint32_t index) {
+  if (index >= list_->size())
+    return StringVar::StringToPPVar("");

[dmichael (off chromium), 2012/03/01 18:29:54]

It's probably better to return PP_MakeUndefined() for an error condition.

[Sergey Ulanov, 2012/03/02 03:01:37]

Done.

+  // NetworkInterface struct doesn't contain display name yet.
+  NOTIMPLEMENTED();
+  return StringVar::StringToPPVar(list_->at(index).name);
+}
+
+uint32_t PPB_NetworkList_Private_Shared::GetMTU(uint32_t index) {
+  if (index >= list_->size())
+    return 0;
+  // NetworkInterface struct doesn't contain MTU yet.
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+}  // namespace thunk