Autofill button should get enabled and disabled according to the policy value.

chrome/browser/ui/webui/options/personal_options_handler.cc

Index: chrome/browser/ui/webui/options/personal_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/personal_options_handler.cc b/chrome/browser/ui/webui/options/personal_options_handler.cc
index 705af76665c46c0d3f74862dbe72aea15ebe2e76..1c370f5377d2dd47a0461896083f972e39585860 100644
--- a/chrome/browser/ui/webui/options/personal_options_handler.cc
+++ b/chrome/browser/ui/webui/options/personal_options_handler.cc
@@ -16,6 +16,7 @@
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "build/build_config.h"
+#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/sync/profile_sync_service.h"
@@ -27,6 +28,7 @@
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/net/gaia/google_service_auth_error.h"
+#include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/browser/user_metrics.h"
 #include "content/common/notification_service.h"
@@ -215,6 +217,11 @@ void PersonalOptionsHandler::Observe(NotificationType type,
     LoadAccountPicture(NULL);
 #endif
   } else {
+    if (type == NotificationType::PREF_CHANGED) {
+      std::string* pref_name = Details<std::string>(details).ptr();
+      if (*pref_name == prefs::kAutofillEnabled)
+        UpdateAutofillUI();
+    }
     OptionsPageUIHandler::Observe(type, source, details);
   }
 }
@@ -360,6 +367,11 @@ void PersonalOptionsHandler::Initialize() {
                  NotificationService::AllSources());
   ObserveThemeChanged();
 
+  // Listen for autofill status changes.
+  autofill_enabled_.Init(prefs::kAutofillEnabled,
+                         web_ui_->GetProfile()->GetPrefs(), this);
+  UpdateAutofillUI();
+
   ProfileSyncService* sync_service =
       web_ui_->GetProfile()->GetProfileSyncService();
   if (sync_service) {
@@ -388,6 +400,15 @@ void PersonalOptionsHandler::ThemesSetGTK(const ListValue* args) {
 }
 #endif
 
+void PersonalOptionsHandler::UpdateAutofillUI() {
+  // Update AutoFill button state.
+  bool autofill_disabled = autofill_enabled_.IsManaged() && !*autofill_enabled_;
+  scoped_ptr<Value> autofill_enabled_state(
+      Value::CreateBooleanValue(!autofill_disabled));
+  web_ui_->CallJavascriptFunction("PersonalOptions.setAutoFillButtonEnabled",
+                                  *autofill_enabled_state);
+}
+
 #if defined(OS_CHROMEOS)
 void PersonalOptionsHandler::LoadAccountPicture(const ListValue* args) {
   const chromeos::UserManager::User& user =