Implement in-process PPB_VarArrayBuffer_Dev.

ppapi/proxy/plugin_array_buffer_var.h

+// 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.
+
+#ifndef PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+#define PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/shared_impl/var.h"
+
+namespace ppapi {
+
+// Represents a plugin-side ArrayBufferVar. In the plugin process, it's
+// owned as a vector.
+class PluginArrayBufferVar : public ArrayBufferVar {
+ public:
+  explicit PluginArrayBufferVar(uint32 size_in_bytes);
+  virtual ~PluginArrayBufferVar();
+
+  // ArrayBufferVar implementation.
+  virtual void* Map() OVERRIDE;
+  virtual uint32 ByteLength() OVERRIDE;
+
+ private:
+  // TODO(dmichael): Use shared memory for this.
+  std::vector<uint8> buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(PluginArrayBufferVar);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_