DevTools: improve test infrastructure w/ devtools driving the test

third_party/WebKit/Source/devtools/BUILD.gn

Index: third_party/WebKit/Source/devtools/BUILD.gn
diff --git a/third_party/WebKit/Source/devtools/BUILD.gn b/third_party/WebKit/Source/devtools/BUILD.gn
index 2c4465da36e91d7425748d7012cefe804cb71a5c..f7a54497558daab7aff4b5ba9d1bdaf9fa77b2c5 100644
--- a/third_party/WebKit/Source/devtools/BUILD.gn
+++ b/third_party/WebKit/Source/devtools/BUILD.gn
@@ -266,6 +266,12 @@ all_devtools_files = [
   "front_end/inline_editor/SwatchPopoverHelper.js",
   "front_end/inspector.js",
   "front_end/inspector.json",
+  "front_end/integration_test_runner.js",
+  "front_end/integration_test_runner.json",
+  "front_end/integration_test/IntegrationTest.js",
+  "front_end/integration_test/module.json",
+  "front_end/integration_test_runner/IntegrationTestRunner.js",
+  "front_end/integration_test_runner/module.json",
   "front_end/layer_viewer/layerDetailsView.css",
   "front_end/layer_viewer/LayerDetailsView.js",
   "front_end/layer_viewer/layers3DView.css",
@@ -595,6 +601,8 @@ all_devtools_files = [
   "front_end/timeline/TimelineTreeModeView.js",
   "front_end/timeline/TimelineTreeView.js",
   "front_end/timeline/TimelineUIUtils.js",
+  "front_end/timer/module.json",
+  "front_end/timer/Timer.js",
   "front_end/toolbox_bootstrap/module.json",
   "front_end/toolbox_bootstrap/Toolbox.js",
   "front_end/toolbox.js",
@@ -872,6 +880,7 @@ generated_remote_modules = [
 devtools_applications = [
   "inspector",
   "toolbox",
+  "integration_test_runner",
   "unit_test_runner",
   "formatter_worker",
   "audits2_worker",
@@ -1024,6 +1033,7 @@ action("build_release_devtools") {
   inputs = helper_scripts + all_devtools_files + generated_scripts + [
              "front_end/inspector.html",
              "front_end/toolbox.html",
+             "front_end/integration_test_runner.html",
              "front_end/unit_test_runner.html",
            ]