Remove obsolete app_list Linux code.

chrome/browser/ui/views/app_list/linux/app_list_service_linux.h

Index: chrome/browser/ui/views/app_list/linux/app_list_service_linux.h
diff --git a/chrome/browser/ui/views/app_list/linux/app_list_service_linux.h b/chrome/browser/ui/views/app_list/linux/app_list_service_linux.h
deleted file mode 100644
index fb7cf76b707b9b5ada09edfd267dc3ad441cc6d3..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/views/app_list/linux/app_list_service_linux.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_UI_VIEWS_APP_LIST_LINUX_APP_LIST_SERVICE_LINUX_H_
-#define CHROME_BROWSER_UI_VIEWS_APP_LIST_LINUX_APP_LIST_SERVICE_LINUX_H_
-
-#include "base/macros.h"
-#include "chrome/browser/ui/app_list/app_list_service_views.h"
-#include "ui/app_list/views/app_list_view_observer.h"
-
-namespace base {
-template <typename T> struct DefaultSingletonTraits;
-}
-
-// AppListServiceLinux manages global resources needed for the app list to
-// operate, and controls when the app list is opened and closed.
-class AppListServiceLinux : public AppListServiceViews,
-                            public app_list::AppListViewObserver {
- public:
-  ~AppListServiceLinux() override;
-
-  static AppListServiceLinux* GetInstance();
-
-  // AppListService overrides:
-  void CreateShortcut() override;
-
-  // app_list::AppListViewObserver overrides:
-  void OnActivationChanged(views::Widget* widget, bool active) override;
-
- private:
-  friend struct base::DefaultSingletonTraits<AppListServiceLinux>;
-
-  // AppListShowerDelegate overrides:
-  void OnViewCreated() override;
-  void OnViewBeingDestroyed() override;
-  void OnViewDismissed() override;
-  void MoveNearCursor(app_list::AppListView* view) override;
-
-  AppListServiceLinux();
-
-  DISALLOW_COPY_AND_ASSIGN(AppListServiceLinux);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_APP_LIST_LINUX_APP_LIST_SERVICE_LINUX_H_