Adds GeolocationFeature for Blimp Geolocation project.

device/geolocation/BUILD.gn

 # Copyright 2016 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/features.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")  # For generate_jni().
 }
 
@@ skipping 134 matching lines @@
     ]
   }
 }
 
 source_set("unittests") {
   testonly = true
 
   sources = [
     "fake_access_token_store.cc",
     "fake_access_token_store.h",
+    "fake_location_provider.cc",
+    "fake_location_provider.h",
     "geolocation_provider_impl_unittest.cc",
     "location_arbitrator_impl_unittest.cc",
     "mock_location_provider.cc",
     "mock_location_provider.h",
     "network_location_provider_unittest.cc",
     "wifi_data_provider_chromeos_unittest.cc",
     "wifi_data_provider_common_unittest.cc",
     "wifi_data_provider_linux_unittest.cc",
     "wifi_data_provider_win_unittest.cc",
   ]
@@ skipping 22 matching lines @@
   }
 
   if (is_android) {
     sources -= [
       "network_location_provider_unittest.cc",
       "wifi_data_provider_common_unittest.cc",
     ]
     deps += [ ":geolocation_java_test_support" ]
   }
 }