Cleanup Tool WebUI: Add HTML content and styling with dummy JS

chrome/browser/ui/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chromecast_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 3052 matching lines @@
       "views/frame/glass_browser_frame_view.cc",
       "views/frame/glass_browser_frame_view.h",
       "views/frame/native_browser_frame_factory_aurawin.cc",
       "views/frame/windows_10_caption_button.cc",
       "views/frame/windows_10_caption_button.h",
       "views/network_profile_bubble_view.cc",
       "views/settings_reset_prompt_dialog.cc",
       "views/settings_reset_prompt_dialog.h",
       "views/uninstall_view.cc",
       "views/uninstall_view.h",
+      "webui/cleanup_tool/cleanup_action_handler.cc",
+      "webui/cleanup_tool/cleanup_action_handler.h",
       "webui/cleanup_tool/cleanup_tool_ui.cc",
       "webui/cleanup_tool/cleanup_tool_ui.h",
       "webui/conflicts_ui.cc",
       "webui/conflicts_ui.h",
       "webui/welcome_win10_handler.cc",
       "webui/welcome_win10_handler.h",
       "webui/welcome_win10_ui.cc",
       "webui/welcome_win10_ui.h",
     ]
     public_deps += [
@@ skipping 469 matching lines @@
       "test/test_confirm_bubble_model.cc",
       "test/test_confirm_bubble_model.h",
     ]
     deps += [ "//chrome/test:test_support_ui" ]
   }
 
   if (enable_extensions) {
     deps += [ "//extensions/browser" ]
   }
 }