[DeviceService] Expose battery monitoring solely via the Device Service

device/battery/BUILD.gn

Index: device/battery/BUILD.gn
diff --git a/device/battery/BUILD.gn b/device/battery/BUILD.gn
deleted file mode 100644
index 2647882a89477eed07a74d0124b9c5fca5437eca..0000000000000000000000000000000000000000
--- a/device/battery/BUILD.gn
+++ /dev/null
@@ -1,80 +0,0 @@
-# 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("//mojo/public/tools/bindings/mojom.gni")
-
-# On android, BatteryManager mojo service is implemented directly in Java.
-if (!is_android) {
-  component("battery") {
-    output_name = "device_battery"
-
-    sources = [
-      "battery_export.h",
-      "battery_monitor_impl.cc",
-      "battery_monitor_impl.h",
-      "battery_status_manager.h",
-      "battery_status_manager_chromeos.cc",
-      "battery_status_manager_default.cc",
-      "battery_status_manager_linux-inl.h",
-      "battery_status_manager_linux.cc",
-      "battery_status_manager_linux.h",
-      "battery_status_manager_mac.cc",
-      "battery_status_manager_win.cc",
-      "battery_status_manager_win.h",
-      "battery_status_service.cc",
-      "battery_status_service.h",
-    ]
-
-    defines = [ "DEVICE_BATTERY_IMPLEMENTATION" ]
-
-    deps = [
-      ":mojo_bindings",
-      "//base",
-      "//base/third_party/dynamic_annotations",
-      "//mojo/public/cpp/bindings",
-    ]
-
-    if (is_chromeos) {
-      configs += [ "//build/config/linux/dbus" ]
-      deps += [
-        "//chromeos:chromeos",
-        "//chromeos:power_manager_proto",
-      ]
-      sources -= [
-        "battery_status_manager_default.cc",
-        "battery_status_manager_linux.cc",
-      ]
-    }
-
-    if (is_linux && !is_chromeos) {
-      if (use_dbus) {
-        configs += [ "//build/config/linux/dbus" ]
-        deps += [ "//dbus" ]
-        sources -= [ "battery_status_manager_default.cc" ]
-      } else {
-        sources -= [ "battery_status_manager_linux.cc" ]
-      }
-    }
-
-    if (is_mac) {
-      sources -= [ "battery_status_manager_default.cc" ]
-      libs = [
-        "CoreFoundation.framework",
-        "IOKit.framework",
-      ]
-    }
-
-    if (is_win) {
-      sources -= [ "battery_status_manager_default.cc" ]
-    }
-  }
-}
-
-mojom("mojo_bindings") {
-  sources = [
-    "battery_monitor.mojom",
-    "battery_status.mojom",
-  ]
-}