Cleanup: Remove Dispatcher and UserScript classes from builds where extensions are disabled.

extensions/renderer/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.
 
 # GYP version: extensions/extensions.gyp:extensions_renderer
 source_set("renderer") {
   sources = [
     "activity_log_converter_strategy.cc",
     "activity_log_converter_strategy.h",
     "api_activity_logger.cc",
@@ skipping 145 matching lines @@
   ]
 
   if (is_android) {
     # Temporary condition for Android until it can stop building
     # the extensions module altogether. These exemptions are taken
     # directly from chrome_renderer.gypi as sources are moved
     # from //chrome/renderer to //extensions/renderer.
     sources -= [
       "api_definitions_natives.cc",
       "context_menus_custom_bindings.cc",
+      "dispatcher.cc",
+      "dispatcher.h",
       "render_view_observer_natives.cc",
       "send_request_natives.cc",
+      "user_script_injector.cc",
+      "user_script_injector.h",
+      "user_script_set.cc",
+      "user_script_set.h",
+      "user_script_set_manager.cc",
+      "user_script_set_manager.h",
     ]
   }
 
   if (is_win) {
     cflags = [
       "/wd4267", # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     ]
   }
 }