Remove the old task manager view

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index 3538026245439c2f3b3ac057ccbbdce4be42734d..f375d8ed87a7136ab60254685fc65cb0ed9a9f73 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -370,6 +370,10 @@ if (!is_android) {
       "//third_party/mesa:osmesa",
     ]
 
+    if (is_mac) {
+      sources += [ "../browser/task_manager/task_manager_browsertest_util.cc" ]
+    }
+
     if (toolkit_views) {
       sources += rebase_path(
               chrome_tests_gypi_values.chrome_interactive_ui_test_views_sources,
@@ -882,6 +886,13 @@ if (!is_android) {
       data += [ "$root_out_dir/chrome_200_percent.pak" ]
     }
 
+    if (is_mac) {
+      sources += rebase_path(
+              chrome_tests_gypi_values.chrome_browser_tests_old_task_manager_macosx_sources,
+              ".",
+              "//chrome")
+    }
+
     deps = [
       ":browser_tests_js_webui",
       ":sync_integration_test_support",
@@ -1846,6 +1857,13 @@ test("unit_tests") {
             chrome_tests_unit_gypi_values.chrome_unit_tests_task_manager_sources,
             ".",
             "//chrome")
+
+    if (is_mac) {
+      sources += rebase_path(
+              chrome_tests_unit_gypi_values.chrome_unit_tests_old_task_manager_macosx_sources,
+              ".",
+              "//chrome")
+    }
   }
   if (enable_mdns) {
     sources += rebase_path(