Allow signin to continue even if sync is disabled by policy.

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 8d4eefe7300cb05e4504334389b94d5466060030..d8c6e6c771b4c4366ad3746e10a42ebcc83b2673 100644
--- a/chrome/browser/ui/browser_command_controller.h
+++ b/chrome/browser/ui/browser_command_controller.h
@@ -30,7 +30,6 @@ namespace chrome {
 class BrowserCommandController : public CommandUpdaterDelegate,
                                  public content::NotificationObserver,
                                  public ProfileInfoCacheObserver,
-                                 public ProfileSyncServiceObserver,
                                  public TabStripModelObserver,
                                  public TabRestoreServiceObserver {
  public:
@@ -110,9 +109,6 @@ class BrowserCommandController : public CommandUpdaterDelegate,
                                     const string16& old_profile_name) OVERRIDE;
   virtual void OnProfileAvatarChanged(const FilePath& profile_path) OVERRIDE;
 
-  // Overridden from ProfileSyncServiceObserver:
-  virtual void OnStateChanged() OVERRIDE;
-
   // Overridden from TabStripModelObserver:
   virtual void TabInsertedAt(content::WebContents* contents,
                              int index,