Automatically remap Command key on an Apple keyboard to Control [part 1 of 2 - Ash part]

ash/shell.h

 // Copyright (c) 2012 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_SHELL_H_
 #define ASH_SHELL_H_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 45 matching lines @@
 class WindowCycleController;
 
 namespace internal {
 class ActivationController;
 class AcceleratorFilter;
 class AppList;
 class DragDropController;
 class EventClientImpl;
 class FocusCycler;
 class InputMethodEventFilter;
+class KeyRewriterEventFilter;
 class MonitorController;
 class PartialScreenshotEventFilter;
 class ResizeShadowController;
 class RootWindowEventFilter;
 class RootWindowLayoutManager;
 class ShadowController;
 class ShelfLayoutManager;
 class StackingController;
 class TooltipController;
 class VisibilityController;
@@ skipping 94 matching lines @@
     return accelerator_controller_.get();
   }
 #endif  // !defined(OS_MACOSX)
 
   internal::RootWindowEventFilter* root_filter() {
     return root_filter_;
   }
   internal::TooltipController* tooltip_controller() {
     return tooltip_controller_.get();
   }
+  internal::KeyRewriterEventFilter* key_rewriter_filter() {
+    return key_rewriter_filter_.get();
+  }
   internal::PartialScreenshotEventFilter* partial_screenshot_filter() {
     return partial_screenshot_filter_.get();
   }
   DesktopBackgroundController* desktop_background_controller() {
     return desktop_background_controller_.get();
   }
   PowerButtonController* power_button_controller() {
     return power_button_controller_.get();
   }
   VideoDetector* video_detector() {
@@ skipping 98 matching lines @@
   scoped_ptr<internal::TooltipController> tooltip_controller_;
   scoped_ptr<internal::VisibilityController> visibility_controller_;
   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
   scoped_ptr<PowerButtonController> power_button_controller_;
   scoped_ptr<VideoDetector> video_detector_;
   scoped_ptr<WindowCycleController> window_cycle_controller_;
   scoped_ptr<internal::FocusCycler> focus_cycler_;
   scoped_ptr<internal::EventClientImpl> event_client_;
   scoped_ptr<internal::MonitorController> monitor_controller_;
 
-  // An event filter that pre-handles all key events to send them to an IME.
-  scoped_ptr<internal::InputMethodEventFilter> input_method_filter_;
+  // An event filter that rewrites or drops a key event.
+  scoped_ptr<internal::KeyRewriterEventFilter> key_rewriter_filter_;
 
   // An event filter that pre-handles key events while the partial
   // screenshot UI is active.
   scoped_ptr<internal::PartialScreenshotEventFilter> partial_screenshot_filter_;
 
 #if !defined(OS_MACOSX)
   // An event filter that pre-handles global accelerators.
   scoped_ptr<internal::AcceleratorFilter> accelerator_filter_;
 #endif
 
+  // An event filter that pre-handles all key events to send them to an IME.
+  scoped_ptr<internal::InputMethodEventFilter> input_method_filter_;
+
   // The shelf for managing the launcher and the status widget in non-compact
   // mode. Shell does not own the shelf. Instead, it is owned by container of
   // the status area.
   internal::ShelfLayoutManager* shelf_;
 
   ObserverList<ShellObserver> observers_;
 
   // Owned by aura::RootWindow, cached here for type safety.
   internal::RootWindowLayoutManager* root_window_layout_;
 
   // Status area with clock, Wi-Fi signal, etc.
   views::Widget* status_widget_;
 
   // System tray with clock, Wi-Fi signal, etc. (a replacement in progress for
   // |status_widget_|).
   scoped_ptr<SystemTray> tray_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_