Remove the Kasko based out of process browser hang instrumentation.

chrome/chrome_watcher/BUILD.gn

 # Copyright 2015 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("//chrome/version.gni")
 import("//testing/test.gni")
-import("//third_party/kasko/kasko.gni")
 
 source_set("client") {
   sources = [
     "chrome_watcher_main_api.cc",
     "chrome_watcher_main_api.h",
   ]
   deps = [
     "//base",
   ]
 }
 
-if (enable_kasko) {
-  source_set("kasko_util") {
-    sources = [
-      "kasko_util.cc",
-      "kasko_util.h",
-      "system_load_estimator.cc",
-      "system_load_estimator.h",
-    ]
-    deps = [
-      "//base",
-      "//components/crash/content/app",
-      "//components/memory_pressure",
-      "//third_party/kasko",
-    ]
-    libs = [ "pdh.lib" ]  # Used by system_load_estimator.h.
-    ldflags = [ "/DELAYLOAD:pdh.dll" ]  # Only used on report capture.
-  }
+source_set("hang_util") {
+  sources = [
+    "system_load_estimator.cc",
+    "system_load_estimator.h",
+  ]
+  deps = [
+    "//base",
+    "//components/memory_pressure",
+  ]
+  libs = [ "pdh.lib" ]  # Used by system_load_estimator.h.
+  ldflags = [ "/DELAYLOAD:pdh.dll" ]  # Only used on report capture.
+}
 
-  test("system_load_estimator_unittests") {
-    sources = [
-      "system_load_estimator_unittest.cc",
-    ]
-    deps = [
-      ":client",
-      ":kasko_util",
-      "//base/test:run_all_unittests",
-      "//base/test:test_support",
-      "//testing/gtest",
-    ]
-  }
-} else {
-  group("kasko_util") {
-    public_deps = [
-      "//third_party/kasko:kasko_features",
-    ]
-  }
+test("system_load_estimator_unittests") {
+  sources = [
+    "system_load_estimator_unittest.cc",
+  ]
+  deps = [
+    ":client",
+    ":hang_util",
+    "//base/test:run_all_unittests",
+    "//base/test:test_support",
+    "//testing/gtest",
+  ]
+}
+
+group("kasko_util") {
+  public_deps = [
+    "//third_party/kasko:kasko_features",
+  ]
 }
 
 process_version("chrome_watcher_resources") {
   template_file = chrome_version_rc_template
   sources = [
     "chrome_watcher.ver",
   ]
   output = "$target_gen_dir/chrome_watcher_version.rc"
 }
 
@@ skipping 12 matching lines @@
     "//base:base_static",
     "//build/config/sanitizers:deps",
     "//chrome/common:metrics_constants_util_win",
     "//chrome/installer/util:with_no_strings",
     "//components/browser_watcher",
   ]
   ldflags = [ "/DEF:" + rebase_path("chrome_watcher.def", root_build_dir) ]
   configs -= [ "//build/config/win:console" ]
   configs += [ "//build/config/win:windowed" ]
 }