Introduce PPB_ResourceArray_Dev.

ppapi/shared_impl/ppb_resource_array_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 "ppapi/shared_impl/ppb_resource_array_shared.h"
+
+#include "base/logging.h"
+#include "ppapi/shared_impl/ppapi_globals.h"
+#include "ppapi/shared_impl/resource_tracker.h"
+
+using ppapi::thunk::PPB_ResourceArray_API;
+
+namespace ppapi {
+
+PPB_ResourceArray_Shared::PPB_ResourceArray_Shared(const InitAsImpl&,
+                                                   PP_Instance instance,
+                                                   const PP_Resource elements[],
+                                                   uint32_t size)
+    : Resource(instance),
+      elements_(NULL),
+      size_(0) {
+  Initialize(elements, size);
+}
+
+PPB_ResourceArray_Shared::PPB_ResourceArray_Shared(const InitAsProxy&,
+                                                   PP_Instance instance,
+                                                   const PP_Resource elements[],
+                                                   uint32_t size)
+    : Resource(HostResource::MakeInstanceOnly(instance)),
+      elements_(NULL),
+      size_(0) {
+  Initialize(elements, size);
+}
+
+PPB_ResourceArray_Shared::~PPB_ResourceArray_Shared() {
+  if (!elements_)
+    return;
+
+  for (uint32_t index = 0; index < size_; ++index) {
+    PP_Resource element = elements_[index];
+    if (element)
+      PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(element);
+  }
+
+  delete[] elements_;
+}
+
+PPB_ResourceArray_API* PPB_ResourceArray_Shared::AsPPB_ResourceArray_API() {
+  return this;
+}
+
+uint32_t PPB_ResourceArray_Shared::GetSize() {
+  return size_;
+}
+
+PP_Resource PPB_ResourceArray_Shared::GetAt(uint32_t index) {
+  return index < size_ ? elements_[index] : 0;
+}
+
+void PPB_ResourceArray_Shared::Initialize(const PP_Resource elements[],
+                                          uint32_t size) {
+  DCHECK(!elements_ && size_ == 0);
+
+  size_ = size;
+  if (size > 0)
+    elements_ = new PP_Resource[size];
+  for (uint32_t index = 0; index < size; ++index) {
+    PP_Resource element = elements[index];
+    elements_[index] = element;
+    if (element)
+      PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(element);
+  }
+}
+
+}  // namespace ppapi