[iOS] Enabling password check by default for iOS

Bug: 1075494
Change-Id: I521f4bf8999b2103fde3c930b96fa013dfae0a12
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2498603Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Viktor Semeniuk <vsemeniuk@google.com>
Cr-Commit-Position: refs/heads/master@{#820814}

components/password_manager/core/common/password_manager_features.cc

@@ -66,7 +66,7 @@ const base::Feature kPasswordChangeInSettings = {
 
 // Enables the bulk Password Check feature for signed in users.
 const base::Feature kPasswordCheck = {"PasswordCheck",
-#if defined(OS_ANDROID) || defined(OS_IOS)
+#if defined(OS_ANDROID)
                                       base::FEATURE_DISABLED_BY_DEFAULT
 #else
                                       base::FEATURE_ENABLED_BY_DEFAULT