Enable download_protection_service_unittest.cc on ChromeOS

chrome/test/BUILD.gn

 # Copyright 2014 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("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//testing/test.gni")
 
@@ skipping 1423 matching lines @@
       }
     }
     if (safe_browsing_mode == 1) {
       # TODO(sgurun): enable tests for safe_browsing==2.
       sources += rebase_path(
               unit_gypi_values.chrome_unit_tests_full_safe_browsing_sources,
               ".",
               "//chrome")
       defines += [ "FULL_SAFE_BROWSING" ]
       deps += [ ":test_proto" ]
-      if (is_chromeos) {
-        sources -= [ "../browser/safe_browsing/download_protection_service_unittest.cc" ]
-      } else if (is_android) {
+      if (is_android) {
         deps -= [ ":test_proto" ]
         sources -= [
           # Android doesn't support download feedbacks.
           "../browser/safe_browsing/download_feedback_service_unittest.cc",
           "../browser/safe_browsing/download_feedback_unittest.cc",
           "../browser/safe_browsing/download_protection_service_unittest.cc",
           "../browser/safe_browsing/two_phase_uploader_unittest.cc",
           "../common/safe_browsing/ipc_protobuf_message_test_messages.h",
           "../common/safe_browsing/ipc_protobuf_message_unittest.cc",
         ]
@@ skipping 286 matching lines @@
     #     ]
     #   }
     #   if (!is_mac) {
     #     sources -= [
     #       "perf/mach_ports_performancetest.cc",
     #     ]
     #   }
     # }
   }
 }