Skeleton of the overall design for the database for Pver4

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 137 matching lines @@
     "//crypto",
     "//net",
     "//url:url",
   ]
   if (is_win) {
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     cflags = [ "/wd4267" ]  # Conversion from size_t to 'type'.
   }
 }
 
+source_set("v4_database") {
+  sources = [
+    "v4_database.cc",
+    "v4_database.h",
+  ]
+  deps = [
+    "//base",
+  ]
+}
+
+source_set("v4_database_impl") {
+  sources = [
+    "v4_database_impl.cc",
+    "v4_database_impl.h",
+  ]
+  public_deps = [
+    ":proto",
+  ]
+  deps = [
+    ":v4_database",
+    ":v4_protocol_manager_util",
+  ]
+}
+
 source_set("v4_get_hash_protocol_manager") {
   sources = [
     "v4_get_hash_protocol_manager.cc",
     "v4_get_hash_protocol_manager.h",
   ]
   public_deps = [
     ":proto",
   ]
   deps = [
     ":util",
     ":v4_protocol_manager_util",
     "//base",
     "//net",
     "//url:url",
   ]
 }
 
 source_set("v4_local_database_manager") {
   sources = [
     "v4_local_database_manager.cc",
     "v4_local_database_manager.h",
   ]
   deps = [
     ":database_manager",
     ":hit_report",
     ":proto",
+    ":v4_database",
+    ":v4_database_impl",
     ":v4_protocol_manager_util",
     ":v4_update_protocol_manager",
     "//base",
     "//content/public/browser",
     "//net",
     "//url:url",
   ]
 }
 
 source_set("v4_protocol_manager_util") {
@@ skipping 72 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'.
   }
 }