Update GN build files for new prefs location.

components/password_manager/core/browser/BUILD.gn

Index: components/password_manager/core/browser/BUILD.gn
diff --git a/components/password_manager/core/browser/BUILD.gn b/components/password_manager/core/browser/BUILD.gn
index 0fc0340b3663367a753fc6a5407a2501fa06eafa..fea92bc36ebffe010d76742df1d0aab854e8626d 100644
--- a/components/password_manager/core/browser/BUILD.gn
+++ b/components/password_manager/core/browser/BUILD.gn
@@ -115,13 +115,13 @@ source_set("browser") {
     ":proto",
     "//base",
     "//base:i18n",
-    "//base:prefs",
     "//components/autofill/core/browser",
     "//components/autofill/core/common",
     "//components/keyed_service/core",
     "//components/os_crypt",
     "//components/password_manager/core/common",
     "//components/pref_registry",
+    "//components/prefs",
     "//components/strings",
     "//components/sync_driver",
     "//components/url_formatter",
@@ -224,13 +224,13 @@ source_set("unit_tests") {
   ]
   deps = [
     ":test_support",
-    "//base:prefs_test_support",
     "//base/test:test_support",
     "//components/autofill/core/browser:test_support",
     "//components/autofill/core/common",
     "//components/os_crypt",
     "//components/password_manager/core/browser:proto",
     "//components/password_manager/core/common",
+    "//components/prefs:test_support",
     "//components/strings",
     "//components/sync_driver:test_support",
     "//components/variations",