Decouple Power Monitor from //content.

content/browser/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")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//printing/features/features.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
@@ skipping 50 matching lines @@
     "//content/public/common:common_sources",
     "//crypto",
     "//device/battery",
     "//device/battery:mojo_bindings",
     "//device/bluetooth",
     "//device/gamepad",
     "//device/generic_sensor",
     "//device/geolocation",
     "//device/geolocation/public/interfaces",
     "//device/nfc:mojo_bindings",
+    "//device/power_monitor",
     "//device/power_save_blocker",
     "//device/sensors/public/cpp",
     "//device/time_zone_monitor",
     "//device/time_zone_monitor/public/interfaces",
     "//device/vibration",
     "//device/wake_lock",
     "//gin",
     "//google_apis",
     "//gpu",
     "//gpu/command_buffer/client:gles2_implementation",
@@ skipping 850 matching lines @@
     "notifications/type_converters.cc",
     "notifications/type_converters.h",
     "payments/payment_app_context.cc",
     "payments/payment_app_context.h",
     "payments/payment_app_manager.cc",
     "payments/payment_app_manager.h",
     "permissions/permission_service_context.cc",
     "permissions/permission_service_context.h",
     "permissions/permission_service_impl.cc",
     "permissions/permission_service_impl.h",
-    "power_monitor_message_broadcaster.cc",
-    "power_monitor_message_broadcaster.h",
     "presentation/presentation_service_impl.cc",
     "presentation/presentation_service_impl.h",
     "presentation/presentation_type_converters.cc",
     "presentation/presentation_type_converters.h",
     "profiler_controller_impl.cc",
     "profiler_controller_impl.h",
     "profiler_message_filter.cc",
     "profiler_message_filter.h",
     "push_messaging/push_messaging_message_filter.cc",
     "push_messaging/push_messaging_message_filter.h",
@@ skipping 1000 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }