| Index: ash/shell_observer.h
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| diff --git a/ash/shell_observer.h b/ash/shell_observer.h
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| index da53428ccba14f155988e533bdb7824cdc305563..e4d23a19512e71cb8201e55aa76eb09615cf409c 100644
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| --- a/ash/shell_observer.h
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| +++ b/ash/shell_observer.h
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| @@ -41,6 +41,9 @@ class ASH_EXPORT ShellObserver {
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|    // Invoked when the shelf alignment in |root_window| is changed.
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|    virtual void OnShelfAlignmentChanged(aura::Window* root_window) {}
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|  
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| +  // Invoked when the shelf auto-hide behavior in |root_window| is changed.
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| +  virtual void OnShelfAutoHideBehaviorChanged(aura::Window* root_window) {}
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| +
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|    // Invoked when the projection touch HUD is toggled.
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|    virtual void OnTouchHudProjectionToggled(bool enabled) {}
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|  
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| 
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