Mojo: Rename (Mojo)WaitFlagsState -> (Mojo)HandleSignalsState.

mojo/system/wait_flags_state.h

-// Copyright 2014 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_WAIT_FLAGS_STATE_H_
-#define MOJO_SYSTEM_WAIT_FLAGS_STATE_H_
-
-#include "base/macros.h"
-#include "mojo/public/c/system/types.h"
-#include "mojo/system/system_impl_export.h"
-
-namespace mojo {
-namespace system {
-
-// Just "add" some constructors and methods to the C struct |MojoWaitFlagsState|
-// (for convenience). This should add no overhead.
-struct MOJO_SYSTEM_IMPL_EXPORT WaitFlagsState : public MojoWaitFlagsState {
-  WaitFlagsState() {
-    satisfied_signals = MOJO_HANDLE_SIGNAL_NONE;
-    satisfiable_signals = MOJO_HANDLE_SIGNAL_NONE;
-  }
-  WaitFlagsState(MojoHandleSignals satisfied, MojoHandleSignals satisfiable) {
-    satisfied_signals = satisfied;
-    satisfiable_signals = satisfiable;
-  }
-
-  bool equals(const WaitFlagsState& other) const {
-    return satisfied_signals == other.satisfied_signals &&
-           satisfiable_signals == other.satisfiable_signals;
-  }
-
-  bool satisfies(MojoHandleSignals signals) const {
-    return !!(satisfied_signals & signals);
-  }
-
-  bool can_satisfy(MojoHandleSignals signals) const {
-    return !!(satisfiable_signals & signals);
-  }
-
-  // (Copy and assignment allowed.)
-};
-COMPILE_ASSERT(sizeof(WaitFlagsState) == sizeof(MojoWaitFlagsState),
-               WaitFlagsState_should_add_no_overhead);
-
-}  // namespace system
-}  // namespace mojo
-
-#endif  // MOJO_SYSTEM_WAIT_FLAGS_STATE_H_