Add TPMForceUpdateSRKVulnerable.UserAcknowledgment

This CL adds the TPM force update logic with user aknowledgment for the
device wide policy TPMForceUpdateSRKVulnerable introduced in CL:1469462.

Bug: 875266
Change-Id: I8b25aa5f3218b6754b8439afdf8ec8bd47b53ec3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1554495
Commit-Queue: Andreea-Elena Costinas <[email protected]>
Reviewed-by: Pavol Marko <[email protected]>
Reviewed-by: Dominic Battré <[email protected]>
Reviewed-by: James Cook <[email protected]>
Cr-Commit-Position: refs/heads/master@{#649896}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index b2d101462..8169d37c 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -15,6 +15,7 @@
 #include "chrome/browser/accessibility/invert_bubble_prefs.h"
 #include "chrome/browser/browser_process_impl.h"
 #include "chrome/browser/chrome_content_browser_client.h"
+#include "chrome/browser/chromeos/policy/tpm_auto_update_mode_policy_handler.h"
 #include "chrome/browser/chromeos/scheduler_configuration_manager.h"
 #include "chrome/browser/component_updater/component_updater_prefs.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
@@ -583,6 +584,7 @@
   policy::DeviceWallpaperImageHandler::RegisterPrefs(registry);
   policy::DMTokenStorage::RegisterPrefs(registry);
   policy::PolicyCertServiceFactory::RegisterPrefs(registry);
+  policy::TPMAutoUpdateModePolicyHandler::RegisterPrefs(registry);
   quirks::QuirksManager::RegisterPrefs(registry);
 #endif