PPAPI: Move PPB_ArrayBuffer out of Dev.

ppapi/cpp/var_array_buffer.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/var_array_buffer.h"
+
+#include <limits>
+
+#include "ppapi/c/ppb_var_array_buffer.h"
+#include "ppapi/cpp/logging.h"
+#include "ppapi/cpp/module_impl.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_VarArrayBuffer>() {
+  return PPB_VAR_ARRAY_BUFFER_INTERFACE;
+}
+
+}  // namespace
+
+VarArrayBuffer::VarArrayBuffer(const Var& var) : Var(var) {
+  if (!var.is_array_buffer()) {
+    PP_NOTREACHED();
+    var_ = PP_MakeNull();
+  }
+}
+
+VarArrayBuffer::VarArrayBuffer(uint32_t size_in_bytes) {
+  if (has_interface<PPB_VarArrayBuffer>()) {
+    var_ = get_interface<PPB_VarArrayBuffer>()->Create(size_in_bytes);
+    needs_release_ = true;
+  } else {
+    PP_NOTREACHED();
+    var_ = PP_MakeNull();
+  }
+}
+
+pp::VarArrayBuffer& VarArrayBuffer::operator=(const VarArrayBuffer& other) {
+  Var::operator=(other);
+  return *this;
+}
+
+pp::Var& VarArrayBuffer::operator=(const Var& other) {
+  if (other.is_array_buffer()) {
+    return Var::operator=(other);
+  } else {
+    PP_NOTREACHED();
+    return *this;
+  }
+}
+
+uint32_t VarArrayBuffer::ByteLength() const {
+  uint32_t byte_length = std::numeric_limits<uint32_t>::max();
+  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer>())
+    get_interface<PPB_VarArrayBuffer>()->ByteLength(var_, &byte_length);
+  else
+    PP_NOTREACHED();
+  return byte_length;
+}
+
+void* VarArrayBuffer::Map() {
+  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer>())
+    return get_interface<PPB_VarArrayBuffer>()->Map(var_);
+  PP_NOTREACHED();
+  return NULL;
+}
+
+void VarArrayBuffer::Unmap() {
+  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer>())
+    get_interface<PPB_VarArrayBuffer>()->Unmap(var_);
+  else
+    PP_NOTREACHED();
+}
+
+}  // namespace pp