Enable handle verifier for tests and add some tests.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 60821ee36313f4ba466002833083e35902768655..8cb8929b296201a88867f4f5873264bed67c575b 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -24,6 +24,12 @@ import("//build/config/ui.gni")
 import("//build/nocompile.gni")
 import("//testing/test.gni")
 
+declare_args() {
+  # Whether to disable the handle verifier hooks.
+  # Hookless parts of the handle verifier will still function.
+  win_disable_handle_verifier_hooks = false
+}
+
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
@@ -1113,6 +1119,10 @@ component("base") {
 
     deps += [ "//base/trace_event/etw_manifest:chrome_events_win" ]
 
+    if (is_win && win_disable_handle_verifier_hooks) {
+      defines += [ "DISABLE_HANDLE_VERIFIER_HOOKS" ]
+    }
+
     if (is_component_build) {
       # Copy the VS runtime DLLs into the isolate so that they don't have to be
       # preinstalled on the target machine. The debug runtimes have a "d" at
@@ -1882,6 +1892,11 @@ test("base_unittests") {
       data += [ "$root_out_dir/base_unittests.dSYM/" ]
     }
   }
+
+  # This disables one of the handle verifier tests.
+  if (is_win && win_disable_handle_verifier_hooks) {
+    defines = [ "DISABLE_HANDLE_VERIFIER_HOOKS" ]
+  }
 }
 
 if (enable_nocompile_tests) {