exo: Clean up cursor code

components/exo/wm_helper_mus.h

Index: components/exo/wm_helper_mus.h
diff --git a/components/exo/wm_helper_mus.h b/components/exo/wm_helper_mus.h
index f1fb4cc73927eee2a836c7ae4169560354f17bb7..b2dcd2ec5baeb9c236347ee44406cc72d021b723 100644
--- a/components/exo/wm_helper_mus.h
+++ b/components/exo/wm_helper_mus.h
@@ -28,7 +28,7 @@ class WMHelperMus : public WMHelper,
   WMHelperMus();
   ~WMHelperMus() override;
 
-  // Overriden from WMHelper:
+  // Overridden from WMHelper:
   const display::ManagedDisplayInfo GetDisplayInfo(
       int64_t display_id) const override;
   aura::Window* GetContainer(int container_id) override;
@@ -44,16 +44,16 @@ class WMHelperMus : public WMHelper,
   bool IsSpokenFeedbackEnabled() const override;
   void PlayEarcon(int sound_key) const override;
 
-  // Overriden from aura::EnvObserver:
+  // Overridden from aura::EnvObserver:
   void OnWindowInitialized(aura::Window* window) override;
   void OnActiveFocusClientChanged(aura::client::FocusClient* focus_client,
                                   aura::Window* window) override;
 
-  // Overriden from ui::client::FocusChangeObserver:
+  // Overridden from ui::client::FocusChangeObserver:
   void OnWindowFocused(aura::Window* gained_focus,
                        aura::Window* lost_focus) override;
 
-  // Overriden from ui::InputDeviceEventObserver:
+  // Overridden from ui::InputDeviceEventObserver:
   void OnKeyboardDeviceConfigurationChanged() override;
 
  private: