Add PPAPI decryptor interfaces.

ppapi/cpp/dev/content_decryptor_dev.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/dev/content_decryptor_dev.h"
+
+#include "ppapi/c/dev/ppp_content_decryptor_dev.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/instance_handle.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/module_impl.h"
+
+namespace pp {
+
+namespace {
+
+static const char kPPPContentDecryptorInterface[] =
+    PPP_CONTENTDECRYPTOR_DEV_INTERFACE;
+
+PP_Bool GenerateKeyRequest(PP_Instance instance,
+                           PP_Var key_system,
+                           PP_Resource init_data) {
+  void* object =
+      Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
+  if (!object)
+    return PP_FALSE;
+  return PP_FromBool(
+      static_cast<ContentDecryptor_Dev*>(object)->GenerateKeyRequest(
+          key_system,
+          init_data));
+}
+
+PP_Bool AddKey(PP_Instance instance,
+               PP_Var session_id,
+               PP_Resource key) {
+  void* object =
+      Instance::GetPerInstanceObject(instance,
+                                     kPPPContentDecryptorInterface);
+  if (!object)
+    return PP_FALSE;
+  return PP_FromBool(
+      static_cast<ContentDecryptor_Dev*>(object)->AddKey(session_id,
+                                                                key));
+}
+
+PP_Bool CancelKeyRequest(PP_Instance instance,
+                         PP_Var session_id) {
+  void* object =
+      Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
+  if (!object)
+    return PP_FALSE;
+  return PP_FromBool(
+      static_cast<ContentDecryptor_Dev*>(object)->CancelKeyRequest(
+          session_id));
+}
+
+
+PP_Bool Decrypt(PP_Instance instance,
+                PP_Resource encrypted_block,
+                PP_CompletionCallback callback) {
+  void* object =
+      Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
+  if (!object)
+    return PP_FALSE;
+  return PP_FromBool(
+      static_cast<ContentDecryptor_Dev*>(object)->Decrypt(
+          encrypted_block,
+          callback));
+}
+
+PP_Bool DecryptAndDecode(PP_Instance instance,
+                         PP_Resource encrypted_block,
+                         PP_CompletionCallback callback) {
+  void* object =
+      Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
+  if (!object)
+    return PP_FALSE;
+  return PP_FromBool(
+      static_cast<ContentDecryptor_Dev*>(object)->DecryptAndDecode(
+          encrypted_block,
+          callback));
+}
+
+const PPP_ContentDecryptor_Dev ppp_content_decryptor = {
+  &GenerateKeyRequest,
+  &AddKey,
+  &CancelKeyRequest,
+  &Decrypt,
+  &DecryptAndDecode
+};
+
+}  // namespace
+
+ContentDecryptor_Dev::ContentDecryptor_Dev(Instance* instance)
+    : associated_instance_(instance) {
+  Module::Get()->AddPluginInterface(kPPPContentDecryptorInterface,
+                                    &ppp_content_decryptor);
+  instance->AddPerInstanceObject(kPPPContentDecryptorInterface, this);
+}
+
+ContentDecryptor_Dev::~ContentDecryptor_Dev() {
+  Instance::RemovePerInstanceObject(associated_instance_,
+                                    kPPPContentDecryptorInterface,
+                                    this);
+}
+
+}  // namespace pp