Add new extension APIs related to animation policy.

chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc

Index: chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc
diff --git a/chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc b/chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc
index f894cc79b5edddc6a2d82b66512a00afed99a663..b875f4730984ed854092823584bde7892a040d54 100644
--- a/chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc
+++ b/chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
 
+#include "chrome/browser/accessibility/accessibility_notifier_factory.h"
 #include "chrome/browser/autocomplete/shortcuts_backend_factory.h"
 #include "chrome/browser/autofill/personal_data_manager_factory.h"
 #include "chrome/browser/background/background_contents_service_factory.h"
@@ -144,6 +145,7 @@ ChromeBrowserMainExtraPartsProfiles::~ChromeBrowserMainExtraPartsProfiles() {
 // static
 void ChromeBrowserMainExtraPartsProfiles::
 EnsureBrowserContextKeyedServiceFactoriesBuilt() {
+  AccessibilityNotifierFactory::GetInstance();
 #if defined(ENABLE_EXTENSIONS)
   apps::EnsureBrowserContextKeyedServiceFactoriesBuilt();
   extensions::EnsureBrowserContextKeyedServiceFactoriesBuilt();