Move common PVer4 code into a V4ProtocolManagerUtil class.

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 64 matching lines @@
   sources = [
     "prefix_set.cc",
     "prefix_set.h",
   ]
   deps = [
     ":util",
     "//base",
   ]
 }
 
-source_set("v4_get_hash_protocol_manager") {
-  sources = [
-    "v4_get_hash_protocol_manager.cc",
-    "v4_get_hash_protocol_manager.h",
-  ]
-  deps = [
-    ":proto",
-    ":util",
-    "//base",
-    "//net",
-    "//url:url",
-  ]
-}
-
 source_set("remote_database_manager") {
   sources = [
     "remote_database_manager.cc",
     "remote_database_manager.h",
   ]
   deps = [
     ":database_manager",
     ":proto",
     ":safe_browsing_api_handler",
     ":v4_get_hash_protocol_manager",
@@ skipping 48 matching lines @@
   sources = [
     "test_database_manager.cc",
     "test_database_manager.h",
   ]
   deps = [
     ":database_manager",
     "//base:base",
   ]
 }
 
+source_set("v4_get_hash_protocol_manager") {
+  sources = [
+    "v4_get_hash_protocol_manager.cc",
+    "v4_get_hash_protocol_manager.h",
+  ]
+  deps = [
+    ":proto",
+    ":util",
+    ":v4_protocol_manager_util",
+    "//base",
+    "//net",
+    "//url:url",
+  ]
+}
+
+source_set("v4_protocol_manager_util") {
+  sources = [
+    "v4_protocol_manager_util.cc",
+    "v4_protocol_manager_util.h",
+  ]
+  deps = [
+    "//base",
+    "//net",
+    "//url:url",
+  ]
+}
+
 source_set("unit_tests") {
   testonly = true
   sources = [
     "prefix_set_unittest.cc",
     "util_unittest.cc",
     "v4_get_hash_protocol_manager_unittest.cc",
+    "v4_protocol_manager_util_unittest.cc",
   ]
   deps = [
     ":prefix_set",
     ":proto",
     ":util",
     ":v4_get_hash_protocol_manager",
+    ":v4_protocol_manager_util",
     "//base",
     "//net",
     "//net:test_support",
     "//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'.
   }
@@ skipping 14 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'.
   }
 }