MacViews: Fix duplicate definition of ExtensionKeyBindingRegistry::SetShortcutHandlingSuspended

ui/base/accelerators/accelerator_processor.h

+// Copyright 2015 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 UI_BASE_ACCELERATORS_ACCELERATOR_PROCESSOR_H_
+#define UI_BASE_ACCELERATORS_ACCELERATOR_PROCESSOR_H_
+
+#include "ui/base/ui_base_export.h"
+
+namespace ui {
+
+class Accelerator;
+class AcceleratorTarget;
+
+// An interface for dispatching accelerators to AcceleratorTargets.
+class UI_BASE_EXPORT AcceleratorProcessor {
+ public:
+  // Activate the target associated with the specified accelerator.
+  // First, AcceleratorPressed handler of the most recently registered target
+  // is called, and if that handler processes the event (i.e. returns true),
+  // this method immediately returns. If not, we do the same thing on the next
+  // target, and so on.
+  // Returns true if an accelerator was activated.
+  virtual bool ProcessAccelerator(const Accelerator& accelerator) = 0;
+
+  // Returns the AcceleratorTarget that should be activated for the specified
+  // keyboard accelerator, or NULL if no target is registered for that keyboard
+  // accelerator.
+  virtual AcceleratorTarget* GetTargetForAccelerator(
+      const Accelerator& accelerator) const = 0;
+
+ protected:
+  virtual ~AcceleratorProcessor() {}
+};
+
+}  // namespace ui
+
+#endif  // UI_BASE_ACCELERATORS_ACCELERATOR_PROCESSOR_H_