Mojo EDK: Introduce MojoQueryHandleSignalsState API

mojo/edk/system/awakable_list.h

 // 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_EDK_SYSTEM_AWAKABLE_LIST_H_
 #define MOJO_EDK_SYSTEM_AWAKABLE_LIST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/macros.h"
 #include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/types.h"
+#include "mojo/public/cpp/system/handle_signals_state.h"
 
 namespace mojo {
 namespace edk {
 
 class Awakable;
-struct HandleSignalsState;
 
 // |AwakableList| tracks all the |Waiter|s that are waiting on a given
 // handle/|Dispatcher|. There should be a |AwakableList| for each handle that
 // can be waited on (in any way). In the simple case, the |AwakableList| is
 // owned by the |Dispatcher|, whereas in more complex cases it is owned by the
 // secondary object (see simple_dispatcher.* and the explanatory comment in
 // core.cc). This class is thread-unsafe (all concurrent access must be
 // protected by some lock).
 class MOJO_SYSTEM_IMPL_EXPORT AwakableList {
  public:
@@ skipping 18 matching lines @@
 
   AwakeInfoList awakables_;
 
   DISALLOW_COPY_AND_ASSIGN(AwakableList);
 };
 
 }  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_AWAKABLE_LIST_H_