[DevTools] Add "remoteModules" experiment.

Source/devtools/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/features.gni")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("devtools.gypi") ],
     "scope",
@@ skipping 104 matching lines @@
   if (debug_devtools) {
     # Debug: all files are picked as-is.
     generated_files = generated_scripts + [
       resources_out_dir + "devtools.html",
       resources_out_dir + "inspector.html",
       resources_out_dir + "toolbox.html",
     ]
     static_files += all_devtools_files + [ "front_end/Runtime.js" ]
   } else {
     # Release: pick compiled non-remote files and lazy-loaded CSS.
+    # TODO(dgozman): remove remote modules from here once experiment is over.
     generated_files = [
       resources_out_dir + "devtools.css",
       resources_out_dir + "devtools.html",
       resources_out_dir + "devtools.js",
       resources_out_dir + "inspector.css",
       resources_out_dir + "inspector.html",
       resources_out_dir + "inspector.js",
       resources_out_dir + "toolbox.css",
       resources_out_dir + "toolbox.html",
       resources_out_dir + "toolbox.js",
@@ skipping 195 matching lines @@
   }
 
   concatenate_css("concatenated_inspector_css") {
     app_name = "inspector"
   }
 
   concatenate_css("concatenated_toolbox_css") {
     app_name = "toolbox"
   }
 }