Restore BLUETOOTH_LOG and convert bluetooth_adapter_bluez to use it

device/bluetooth/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/features.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")  # For generate_jni().
 }
 
 config("bluetooth_config") {
@@ skipping 150 matching lines @@
     "string_util_icu.cc",
     "string_util_icu.h",
   ]
 
   defines = [ "DEVICE_BLUETOOTH_IMPLEMENTATION" ]
 
   all_dependent_configs = [ ":bluetooth_config" ]
 
   deps = [
     "//base",
+    "//components/device_event_log",
     "//crypto",
     "//device/bluetooth/strings",
     "//device/bluetooth/uribeacon",
     "//ipc",
     "//net",
     "//ui/base",
   ]
 
   if (is_android) {
     deps += [ ":jni_headers" ]
@@ skipping 231 matching lines @@
   }
 
   android_library("java") {
     java_files = java_sources_needing_jni
     deps = [
       "//base:base_java",
       "//components/location/android:location_java",
     ]
   }
 }