Add policy for ash launcher auto-hide behavior

chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h
index 5ef6ad13c2d787bbb309baa22952351e4a0b1a7f..e1398577d92a1c267f17b34e8fba069a11631472 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.h
@@ -191,8 +191,19 @@ class ChromeLauncherControllerPerBrowser
 
   virtual Profile* profile() OVERRIDE;
 
-  virtual void SetAutoHideBehavior(ash::ShelfAutoHideBehavior behavior,
-                           aura::RootWindow* root_window) OVERRIDE;
+  // Gets the shelf auto-hide behavior on |root_window|.
+  virtual ash::ShelfAutoHideBehavior GetShelfAutoHideBehavior(
+      aura::RootWindow* root_window) const OVERRIDE;
+
+  // Returns |true| if the user is allowed to modify the shelf auto-hide
+  // behavior on |root_window|.
+  virtual bool CanUserModifyShelfAutoHideBehavior(
+      aura::RootWindow* root_window) const OVERRIDE;
+
+  // Toggles the shelf auto-hide behavior on |root_window|. Does nothing if the
+  // user is not allowed to modify the auto-hide behavior.
+  virtual void ToggleShelfAutoHideBehavior(
+      aura::RootWindow* root_window) OVERRIDE;
 
   // The tab no longer represents its previously identified application.
   virtual void RemoveTabFromRunningApp(TabContents* tab,
@@ -283,6 +294,10 @@ class ChromeLauncherControllerPerBrowser
   // Re-syncs launcher model with prefs::kPinnedLauncherApps.
   void UpdateAppLaunchersFromPref();
 
+  // Persists the shelf auto-hide behavior to prefs.
+  void SetShelfAutoHideBehaviorPrefs(ash::ShelfAutoHideBehavior behavior,
+                                     aura::RootWindow* root_window);
+
   // Sets the shelf auto-hide behavior from prefs.
   void SetShelfAutoHideBehaviorFromPrefs();