Separate debug shortcuts into another array in ash accelerator table.

ash/accelerators/accelerator_controller.h

Index: ash/accelerators/accelerator_controller.h
diff --git a/ash/accelerators/accelerator_controller.h b/ash/accelerators/accelerator_controller.h
index 883e108b9234b90a5f688bb0d779182faa1e25ec..77769ec4949bd8d4083da7ca5d58032b4c6301b6 100644
--- a/ash/accelerators/accelerator_controller.h
+++ b/ash/accelerators/accelerator_controller.h
@@ -20,6 +20,7 @@ class AcceleratorManager;
 
 namespace ash {
 
+struct AcceleratorData;
 class BrightnessControlDelegate;
 class CapsLockDelegate;
 class ImeControlDelegate;
@@ -101,6 +102,10 @@ class ASH_EXPORT AcceleratorController : public ui::AcceleratorTarget {
   // A negative index switches to the last window in the list.
   void SwitchToWindow(int window);
 
+  // Registers the specified accelerators.
+  void RegisterAccelerators(const AcceleratorData accelerators[],
+                            size_t accelerators_length);
+
   scoped_ptr<ui::AcceleratorManager> accelerator_manager_;
 
   // TODO(derat): BrightnessControlDelegate is also used by the system tray;