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diff --git a/chromium/mojo/system/data_pipe_consumer_dispatcher.h b/chromium/mojo/system/data_pipe_consumer_dispatcher.h
new file mode 100644
index 00000000000..390d0bfe917
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+++ b/chromium/mojo/system/data_pipe_consumer_dispatcher.h
@@ -0,0 +1,62 @@
+// Copyright 2013 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 MOJO_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_
+#define MOJO_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
+#include "mojo/system/dispatcher.h"
+#include "mojo/system/system_impl_export.h"
+
+namespace mojo {
+namespace system {
+
+class DataPipe;
+
+// This is the |Dispatcher| implementation for the consumer handle for data
+// pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
+// thread-safe.
+class MOJO_SYSTEM_IMPL_EXPORT DataPipeConsumerDispatcher : public Dispatcher {
+ public:
+  DataPipeConsumerDispatcher();
+
+  // Must be called before any other methods.
+  void Init(scoped_refptr<DataPipe> data_pipe);
+
+  // |Dispatcher| public methods:
+  virtual Type GetType() const OVERRIDE;
+
+ private:
+  virtual ~DataPipeConsumerDispatcher();
+
+  // |Dispatcher| protected methods:
+  virtual void CancelAllWaitersNoLock() OVERRIDE;
+  virtual void CloseImplNoLock() OVERRIDE;
+  virtual scoped_refptr<Dispatcher>
+      CreateEquivalentDispatcherAndCloseImplNoLock() OVERRIDE;
+  virtual MojoResult ReadDataImplNoLock(void* elements,
+                                        uint32_t* num_bytes,
+                                        MojoReadDataFlags flags) OVERRIDE;
+  virtual MojoResult BeginReadDataImplNoLock(const void** buffer,
+                                             uint32_t* buffer_num_bytes,
+                                             MojoReadDataFlags flags) OVERRIDE;
+  virtual MojoResult EndReadDataImplNoLock(uint32_t num_bytes_read) OVERRIDE;
+  virtual MojoResult AddWaiterImplNoLock(Waiter* waiter,
+                                         MojoHandleSignals signals,
+                                         uint32_t context) OVERRIDE;
+  virtual void RemoveWaiterImplNoLock(Waiter* waiter) OVERRIDE;
+  virtual bool IsBusyNoLock() const OVERRIDE;
+
+  // Protected by |lock()|:
+  scoped_refptr<DataPipe> data_pipe_;  // This will be null if closed.
+
+  DISALLOW_COPY_AND_ASSIGN(DataPipeConsumerDispatcher);
+};
+
+}  // namespace system
+}  // namespace mojo
+
+#endif  // MOJO_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_