Makes V4UpdateProtocolManager auto-schedule update fetching

components/safe_browsing_db/BUILD.gn

 # Copyright 2015 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.
 
 import("//third_party/protobuf/proto_library.gni")
 
 proto_library("proto") {
   sources = [
     "safebrowsing.proto",
   ]
@@ skipping 12 matching lines @@
     ":hit_report",
     ":prefix_set",
     ":proto",
     ":util",
   ]
 }
 
 group("safe_browsing_db") {
   deps = [
     ":safe_browsing_db_shared",
+    ":v4_update_protocol_manager",
   ]
 }
 
 group("safe_browsing_db_mobile") {
   deps = [
     ":remote_database_manager",
     ":safe_browsing_api_handler",
     ":safe_browsing_api_handler_util",
     ":safe_browsing_db_shared",
   ]
 }
 
 source_set("database_manager") {
   sources = [
     "database_manager.cc",
     "database_manager.h",
   ]
   deps = [
     ":hit_report",
     ":util",
     ":v4_get_hash_protocol_manager",
-    ":v4_update_protocol_manager",
     "//base:base",
     "//content/public/browser",
     "//content/public/common",
     "//net",
     "//url:url",
   ]
 }
 
 source_set("hit_report") {
   sources = [
@@ skipping 177 matching lines @@
     "//base",
     "//components/variations",
     "//testing/gtest",
     "//url",
   ]
   if (is_win) {
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     cflags = [ "/wd4267" ]  # Conversion from size_t to 'type'.
   }
 }