PasswordProtectionService verdict cache management

components/safe_browsing/password_protection/BUILD.gn

 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 source_set("password_protection") {
   sources = [
     "password_protection_service.cc",
     "password_protection_service.h",
   ]
 
   deps = [
     "//base:base",
+    "//components/content_settings/core/browser:browser",
     "//components/history/core/browser:browser",
+    "//components/safe_browsing:csd_proto",
     "//components/safe_browsing_db:database_manager",
+    "//components/safe_browsing_db:v4_protocol_manager_util",
     "//content/public/browser:browser",
     "//third_party/protobuf:protobuf_lite",
   ]
 }
 
 source_set("password_protection_unittest") {
   testonly = true
   sources = [
     "password_protection_service_unittest.cc",
   ]
   deps = [
     ":password_protection",
     "//base",
     "//base/test:test_support",
     "//components/safe_browsing_db:test_database_manager",
+    "//components/sync_preferences:test_support",
     "//content/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/protobuf:protobuf_lite",
   ]
 }