[DevTools] Separate ScreenCaptureModel out of ResourceTreeModel.

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 429 matching lines @@
   "front_end/sdk/module.json",
   "front_end/sdk/NetworkLog.js",
   "front_end/sdk/NetworkManager.js",
   "front_end/sdk/NetworkRequest.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",
   "front_end/sdk/ServiceWorkerManager.js",
   "front_end/sdk/SourceMap.js",
   "front_end/sdk/SubTargetsManager.js",
   "front_end/sdk/Target.js",
   "front_end/sdk/TargetManager.js",
   "front_end/sdk/TracingManager.js",
   "front_end/sdk/TracingModel.js",
@@ skipping 621 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",
   ]
 }