Fetch incremental updates. Store new state in V4Store.

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",
   ]
 }
 
 # GYP version: components/safe_browsing_db.gypi:safe_browsing_metadata_proto
 proto_library("metadata_proto") {
   sources = [
     "metadata.proto",
   ]
 }
 
+# This target is shared between the desktop and mobile versions.
 group("safe_browsing_db_shared") {
   deps = [
     ":database_manager",
     ":hit_report",
     ":prefix_set",
     ":proto",
     ":util",
   ]
 }
 
+# This target is for the desktop version.
 group("safe_browsing_db") {
   deps = [
     ":safe_browsing_db_shared",
     ":v4_local_database_manager",
     ":v4_update_protocol_manager",
   ]
 }
 
+# This target is for the mobile version.
 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") {
@@ skipping 170 matching lines @@
     "//net",
     "//url:url",
   ]
 }
 
 source_set("v4_store") {
   sources = [
     "v4_store.cc",
     "v4_store.h",
   ]
+  public_deps = [
+    ":proto",
+  ]
   deps = [
+    ":v4_protocol_manager_util",
     "//base",
   ]
 }
 
 source_set("v4_update_protocol_manager") {
   sources = [
     "v4_update_protocol_manager.cc",
     "v4_update_protocol_manager.h",
   ]
   deps = [
@@ skipping 57 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'.
   }
 }