Attemp 2 at:

chrome/browser/tabs/tab_strip_model.cc

Index: chrome/browser/tabs/tab_strip_model.cc
diff --git a/chrome/browser/tabs/tab_strip_model.cc b/chrome/browser/tabs/tab_strip_model.cc
index 9fe21e64862968f74df14bb366e950beba4ad265..22cea3b0ba48d5429890ca6f2dd08ffee857e491 100644
--- a/chrome/browser/tabs/tab_strip_model.cc
+++ b/chrome/browser/tabs/tab_strip_model.cc
@@ -121,9 +121,6 @@ TabStripModel::TabStripModel(TabStripModelDelegate* delegate, Profile* profile)
   registrar_.Add(this,
                  NotificationType::EXTENSION_UNLOADED,
                  Source<Profile>(profile_));
-  registrar_.Add(this,
-                 NotificationType::EXTENSION_APP_TOOLBAR_VISIBILITY_CHANGED,
-                 NotificationService::AllSources());
   order_controller_ = new TabStripModelOrderController(this);
 }
 
@@ -528,16 +525,6 @@ bool TabStripModel::IsAppTab(int index) const {
   return contents && contents->is_app();
 }
 
-bool TabStripModel::IsToolbarVisible(int index) const {
-  Extension* extension_app = GetTabContentsAt(index)->extension_app();
-  if (!extension_app)
-    return true;
-
-  ExtensionsService* service = profile()->GetExtensionsService();
-  ExtensionPrefs* prefs = service->extension_prefs();
-  return prefs->AreAppTabToolbarsVisible(extension_app->id());
-}
-
 bool TabStripModel::IsPhantomTab(int index) const {
   return IsTabPinned(index) &&
          GetTabContentsAt(index)->controller().needs_reload();
@@ -708,8 +695,6 @@ bool TabStripModel::IsContextMenuCommandEnabled(
       return delegate_->CanRestoreTab();
     case CommandTogglePinned:
       return true;
-    case CommandToggleToolbar:
-      return true;
     case CommandBookmarkAllTabs:
       return delegate_->CanBookmarkAllTabs();
     case CommandUseVerticalTabs:
@@ -795,32 +780,6 @@ void TabStripModel::ExecuteContextMenuCommand(
       }
       break;
     }
-    case CommandToggleToolbar: {
-      UserMetrics::RecordAction(
-          UserMetricsAction("TabContextMenu_ToggleToolbar"),
-          profile_);
-
-      SelectTabContentsAt(context_index, true);
-
-      Extension* extension_app =
-          GetTabContentsAt(context_index)->extension_app();
-      if (!extension_app)
-        break;
-
-      ExtensionsService* service = profile()->GetExtensionsService();
-      ExtensionPrefs* prefs = service->extension_prefs();
-      bool new_val = !prefs->AreAppTabToolbarsVisible(extension_app->id());
-      prefs->SetAppTabToolbarVisibility(extension_app->id(), new_val);
-
-      // There might be multiple browsers displaying this app, so we send a
-      // notification to update them all.
-      NotificationService::current()->Notify(
-          NotificationType::EXTENSION_APP_TOOLBAR_VISIBILITY_CHANGED,
-          Source<Extension>(extension_app),
-          Details<bool>(&new_val));
-
-      break;
-    }
 
     case CommandBookmarkAllTabs: {
       UserMetrics::RecordAction(
@@ -907,17 +866,6 @@ void TabStripModel::Observe(NotificationType type,
       break;
     }
 
-    case NotificationType::EXTENSION_APP_TOOLBAR_VISIBILITY_CHANGED: {
-      Extension* extension = Source<Extension>(source).ptr();
-      bool* value = Details<bool>(details).ptr();
-      TabContents* selected = GetSelectedTabContents();
-
-      if (selected && selected->extension_app() == extension)
-        delegate_->SetToolbarVisibility(*value);
-
-      break;
-    }
-
     default:
       NOTREACHED();
   }