Add PPB_VarDictionary_Dev support - part 1.

ppapi/thunk/ppb_var_dictionary_thunk.cc

+// Copyright (c) 2013 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/c/dev/ppb_var_dictionary_dev.h"
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_var.h"
+#include "ppapi/shared_impl/dictionary_var.h"
+#include "ppapi/shared_impl/proxy_lock.h"
+#include "ppapi/thunk/thunk.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+PP_Var Create() {
+  ProxyAutoLock lock;
+
+  // Var tracker will hold a reference to this object.
+  DictionaryVar* var = new DictionaryVar();
+  return var->GetPPVar();
+}
+
+PP_Var Get(PP_Var dict, PP_Var key) {
+  ProxyAutoLock lock;
+
+  DictionaryVar* dict_var = DictionaryVar::FromPPVar(dict);
+  if (!dict_var)
+    return PP_MakeUndefined();
+  return dict_var->Get(key);
+}
+
+PP_Bool Set(PP_Var dict, PP_Var key, PP_Var value) {
+  ProxyAutoLock lock;
+
+  DictionaryVar* dict_var = DictionaryVar::FromPPVar(dict);
+  if (!dict_var)
+    return PP_FALSE;
+
+  return dict_var->Set(key, value);
+}
+
+void Delete(PP_Var dict, PP_Var key) {
+  ProxyAutoLock lock;
+
+  DictionaryVar* dict_var = DictionaryVar::FromPPVar(dict);
+  if (dict_var)
+    dict_var->Delete(key);
+}
+
+PP_Bool HasKey(PP_Var dict, PP_Var key) {
+  ProxyAutoLock lock;
+
+  DictionaryVar* dict_var = DictionaryVar::FromPPVar(dict);
+  if (!dict_var)
+    return PP_FALSE;
+  return dict_var->HasKey(key);
+}
+
+PP_Var GetKeys(PP_Var dict) {
+  ProxyAutoLock lock;
+
+  DictionaryVar* dict_var = DictionaryVar::FromPPVar(dict);
+  if (!dict_var)
+    return PP_MakeNull();
+  return dict_var->GetKeys();
+}
+
+const PPB_VarDictionary_Dev_0_1 g_ppb_vardictionary_0_1_thunk = {
+  &Create,
+  &Get,
+  &Set,
+  &Delete,
+  &HasKey,
+  &GetKeys
+};
+
+}  // namespace
+
+const PPB_VarDictionary_Dev_0_1* GetPPB_VarDictionary_Dev_0_1_Thunk() {
+  return &g_ppb_vardictionary_0_1_thunk;
+}
+
+}  // namespace thunk
+}  // namespace ppapi