1 files changed, 51 insertions, 0 deletions
diff --git a/chromium/ppapi/proxy/plugin_array_buffer_var.h b/chromium/ppapi/proxy/plugin_array_buffer_var.h
new file mode 100644
index 00000000000..84d9d217708
--- /dev/null
+++ b/chromium/ppapi/proxy/plugin_array_buffer_var.h
@@ -0,0 +1,51 @@
+// 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.
+
+#ifndef PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+#define PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/shared_memory.h"
+#include "ppapi/c/pp_instance.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);
+  PluginArrayBufferVar(uint32 size_in_bytes,
+                       base::SharedMemoryHandle plugin_handle);
+  virtual ~PluginArrayBufferVar();
+
+  // ArrayBufferVar implementation.
+  virtual void* Map() OVERRIDE;
+  virtual void Unmap() OVERRIDE;
+  virtual uint32 ByteLength() OVERRIDE;
+  virtual bool CopyToNewShmem(
+      PP_Instance instance,
+      int* host_handle,
+      base::SharedMemoryHandle* plugin_handle) OVERRIDE;
+
+ private:
+  // Non-shared memory
+  std::vector<uint8> buffer_;
+
+  // Shared memory
+  base::SharedMemoryHandle plugin_handle_;
+  scoped_ptr<base::SharedMemory> shmem_;
+  uint32 size_in_bytes_;
+
+  DISALLOW_COPY_AND_ASSIGN(PluginArrayBufferVar);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_