Refactor bluetooth_low_energy_win to prepare for new Bluetooth test fixture

device/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("//build/config/features.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")  # For generate_jni().
 }
@@ skipping 162 matching lines @@
     # Previously, it was nested in IOBluetooth. In order for Chrome to run on
     # OSes older than OSX 10.10, the top level CoreBluetooth framework must be
     # weakly linked.
     if (mac_sdk_version == "10.10") {
       ldflags += [
         "-weak_framework",
         "CoreBluetooth",
       ]
     }
   }
+
+  if (is_win) {
+    sources += [
+      "bluetooth/bluetooth_low_energy_win_fake.cc",
+      "bluetooth/bluetooth_low_energy_win_fake.h",
+    ]
+  }
 }
 
 if (is_android) {
   bluetooth_java_sources_needing_jni = [ "bluetooth/test/android/java/src/org/chromium/device/bluetooth/Fakes.java" ]
 
   generate_jni("bluetooth_test_jni_headers") {
     sources = bluetooth_java_sources_needing_jni
     jni_package = "bluetooth"
   }
 
   android_library("bluetooth_test_java") {
     java_files = bluetooth_java_sources_needing_jni
     deps = [
       "//base:base_java",
       "//device/bluetooth:java",
     ]
   }
 }