Remove PrefObserver usages, batch 12.

chrome/browser/ui/browser_command_controller.h

Index: chrome/browser/ui/browser_command_controller.h
diff --git a/chrome/browser/ui/browser_command_controller.h b/chrome/browser/ui/browser_command_controller.h
index 1d8e96c4f4605baa3f69032ba506411ef9524b2d..e3f6afa43534a5a1003f87788140f54bb1ea285c 100644
--- a/chrome/browser/ui/browser_command_controller.h
+++ b/chrome/browser/ui/browser_command_controller.h
@@ -6,7 +6,6 @@
 #define CHROME_BROWSER_UI_BROWSER_COMMAND_CONTROLLER_H_
 
 #include "base/prefs/public/pref_change_registrar.h"
-#include "base/prefs/public/pref_observer.h"
 #include "chrome/browser/api/sync/profile_sync_service_observer.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/sessions/tab_restore_service_observer.h"
@@ -28,7 +27,6 @@ namespace chrome {
 
 class BrowserCommandController : public CommandUpdater::CommandUpdaterDelegate,
                                  public content::NotificationObserver,
-                                 public PrefObserver,
                                  public TabStripModelObserver,
                                  public TabRestoreServiceObserver,
                                  public ProfileSyncServiceObserver {
@@ -88,10 +86,6 @@ class BrowserCommandController : public CommandUpdater::CommandUpdaterDelegate,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  // Overridden from PrefObserver:
-  virtual void OnPreferenceChanged(PrefServiceBase* service,
-                                   const std::string& pref_name) OVERRIDE;
-
   // Overridden from TabStripModelObserver:
   virtual void TabInsertedAt(content::WebContents* contents,
                              int index,
@@ -139,6 +133,10 @@ class BrowserCommandController : public CommandUpdater::CommandUpdaterDelegate,
   // Updates commands that affect the bookmark bar.
   void UpdateCommandsForBookmarkBar();
 
+  // Updates commands that affect file selection dialogs in aggregate,
+  // namely the save-page-as state and the open-file state.
+  void UpdateCommandsForFileSelectionDialogs();
+
   // Update commands whose state depends on the type of fullscreen mode the
   // window is in.
   void UpdateCommandsForFullscreenMode(FullScreenMode fullscreen_mode);