Add window cycle completion and cancellation accelerators in mus+ash.

ash/mus/accelerators/accelerator_controller_registrar.h

 // Copyright 2016 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 ASH_MUS_ACCELERATORS_ACCELERATOR_CONTROLLER_REGISTRAR_H_
 #define ASH_MUS_ACCELERATORS_ACCELERATOR_CONTROLLER_REGISTRAR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 39 matching lines @@
       const std::vector<ui::Accelerator>& accelerators) override;
   void OnAcceleratorUnregistered(const ui::Accelerator& accelerator) override;
 
   // Generate id and add the corresponding accelerator to accelerator vector.
   // Creates a PRE_TARGET and POST_TARGET mojom accelerators for the provided
   // |accelerator| and adds them to the provided |accelerator_vector|.
   void AddAcceleratorToVector(
       const ui::Accelerator& accelerator,
       std::vector<ui::mojom::WmAcceleratorPtr>& accelerator_vector);
 
+  // TODO(moshayedi): crbug.com/629191. Handling window cycle accelerators here
+  // is just a temporary solution and we should remove these once we have a
+  // proper solution.
+  void RegisterWindowCycleAccelerators();
+  bool HandleWindowCycleAccelerator(const ui::Accelerator& accelerator);
+
   // The flow of accelerators in ash is:
   // . wm::AcceleratorFilter() sees events first as it's a pre-target handler.
   // . AcceleratorFilter forwards to its delegate, which indirectly is
   //   implemented by AcceleratorRouter.
   // . AcceleratorRouter may early out, if not it calls through to
   //   AcceleratorController. This stop may stop propagation entirely.
   // . If focus is on a Widget, then NativeWidgetAura gets the key event, calls
   //   to Widget::OnKeyEvent(), which calls to FocusManager::OnKeyEvent(), which
   //   calls to AshFocusManagerFactory::Delegate::ProcessAccelerator() finally
   //   ending up in AcceleratorController::Process().
@@ skipping 34 matching lines @@
   // Maps from accelerator to the two ids registered for it.
   std::map<ui::Accelerator, Ids> accelerator_to_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(AcceleratorControllerRegistrar);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_ACCELERATORS_ACCELERATOR_CONTROLLER_REGISTRAR_H_