Move shelf item tooltip flag from delegate to item.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 266 matching lines @@
     return items;
   }
   ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) override {
     return NULL;
   }
   bool IsDraggable() override { return false; }
   bool CanPin() const override {
     return GetPinnableForAppID(app_id(), launcher_controller()->profile()) ==
            AppListControllerDelegate::PIN_EDITABLE;
   }
-  bool ShouldShowTooltip() override { return false; }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestV2AppLauncherItemController);
 };
 
 }  // namespace
 
 class ChromeLauncherControllerImplTest : public BrowserWithTestWindowTest {
  protected:
   ChromeLauncherControllerImplTest()
@@ skipping 3773 matching lines @@
 
   // Pinned state should not change.
   EXPECT_EQ("AppList, Chrome, App1, App2", GetPinnedAppStatus());
   launcher_controller_->UnpinAppWithID(extension2_->id());
   EXPECT_EQ("AppList, Chrome, App1", GetPinnedAppStatus());
 
   // Resume syncing and sync information overrides local copy.
   StartAppSyncService(copy_sync_list);
   EXPECT_EQ("AppList, Chrome, App1, App2", GetPinnedAppStatus());
 }