Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain

third_party/WebKit/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")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 all_devtools_files = [
   "front_end/accessibility/AccessibilityModel.js",
@@ skipping 274 matching lines @@
   "front_end/layer_viewer/TransformController.js",
   "front_end/layers/LayerPaintProfilerView.js",
   "front_end/layers/LayersPanel.js",
   "front_end/layers/LayerTreeModel.js",
   "front_end/layers/module.json",
   "front_end/main/errorWarningCounter.css",
   "front_end/main/ExecutionContextSelector.js",
   "front_end/main/GCActionDelegate.js",
   "front_end/main/Main.js",
   "front_end/main/module.json",
+  "front_end/main/OverlayController.js",
   "front_end/main/remoteDebuggingTerminatedScreen.css",
   "front_end/main/renderingOptions.css",
   "front_end/main/RenderingOptions.js",
   "front_end/main/RequestAppBannerActionDelegate.js",
   "front_end/main/SimpleApp.js",
   "front_end/main/targetCrashedScreen.css",
   "front_end/network/blockedURLsPane.css",
   "front_end/network/BlockedURLsPane.js",
   "front_end/network/eventSourceMessagesView.css",
   "front_end/network/EventSourceMessagesView.js",
@@ skipping 161 matching lines @@
   "front_end/sdk/DOMDebuggerModel.js",
   "front_end/sdk/DebuggerModel.js",
   "front_end/sdk/DOMModel.js",
   "front_end/sdk/FilmStripModel.js",
   "front_end/sdk/HeapProfilerModel.js",
   "front_end/sdk/LayerTreeBase.js",
   "front_end/sdk/LogModel.js",
   "front_end/sdk/module.json",
   "front_end/sdk/NetworkManager.js",
   "front_end/sdk/NetworkRequest.js",
-  "front_end/sdk/OverlayModel.js",
   "front_end/sdk/PaintProfiler.js",
   "front_end/sdk/ProfileTreeModel.js",
   "front_end/sdk/RemoteObject.js",
   "front_end/sdk/Resource.js",
   "front_end/sdk/ResourceTreeModel.js",
   "front_end/sdk/RuntimeModel.js",
   "front_end/sdk/ScreenCaptureModel.js",
   "front_end/sdk/Script.js",
   "front_end/sdk/SecurityOriginManager.js",
   "front_end/sdk/ServiceWorkerCacheModel.js",
@@ skipping 645 matching lines @@
     ".eslintrc.js",
     "devtools-node-modules/",
     "front_end/",
     "scripts/buildbot/run_eslint.py",
     "scripts/local_node/",
     "//testing/scripts/common.py",
     "//testing/scripts/run_devtools_check.py",
     "//testing/xvfb.py",
   ]
 }