Cache the Windows Parental Controls Platform Answer

chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc

Index: chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc
diff --git a/chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc b/chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc
index 3c5b2acdd2f832cd1db8b6b660996e6d5ba9eef4..570e9dfb2877a924f88076fef6d1af10aa67d33d 100644
--- a/chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc
+++ b/chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc
@@ -36,6 +36,16 @@ class LauncherContextMenuTest : public ash::test::AshTestBase {
   LauncherContextMenuTest()
       : profile_(new TestingProfile()) {}
 
+  static void SetUpTestCase() {
+    // Checking for incognito availability requires platform parental controls
+    // initialization.
+    IncognitoModePrefs::InitializePlatformParentalControls();
+  }
+
+  static void TearDownTestCase() {
+    IncognitoModePrefs::UninitializePlatformParentalControls();
+  }
+
   void SetUp() override {
     ash::test::AshTestBase::SetUp();
     controller_.reset(