Implement in-process PPB_VarArrayBuffer_Dev.

webkit/plugins/ppapi/host_array_buffer_var.cc

+// Copyright (c) 2011 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 "webkit/plugins/ppapi/host_array_buffer_var.h"
+
+using ppapi::ArrayBufferVar;
+using WebKit::WebArrayBuffer;
+
+namespace webkit {
+namespace ppapi {
+
+HostArrayBufferVar::HostArrayBufferVar(uint32 size_in_bytes)
+    : buffer_(WebArrayBuffer::create(size_in_bytes, 1 /* element_size */)) {
+}
+
+HostArrayBufferVar::HostArrayBufferVar(const WebArrayBuffer& buffer)
+    : buffer_(buffer) {
+}
+
+HostArrayBufferVar::~HostArrayBufferVar() {
+}
+
+void* HostArrayBufferVar::Map() {
+  return buffer_.data();
+}
+
+uint32 HostArrayBufferVar::ByteLength() {
+  return buffer_.byteLength();
+}
+
+}  // namespace ppapi
+}  // namespace webkit
+