Add GetWakeLockWithoutContext() in WakeLockContextProvider mojo interface.

device/wake_lock/wake_lock_context_provider.cc

-// Copyright 2017 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.
-
-#include "device/wake_lock/wake_lock_context_provider.h"
-
-#include <utility>
-
-#include "mojo/public/cpp/bindings/strong_binding.h"
-
-namespace device {
-
-// static
-void WakeLockContextProvider::Create(
-    mojom::WakeLockContextProviderRequest request,
-    scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
-    const WakeLockContextCallback& native_view_getter) {
-  mojo::MakeStrongBinding(base::MakeUnique<WakeLockContextProvider>(
-                              std::move(file_task_runner), native_view_getter),
-                          std::move(request));
-}
-
-WakeLockContextProvider::WakeLockContextProvider(
-    scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
-    const WakeLockContextCallback& native_view_getter)
-    : file_task_runner_(std::move(file_task_runner)),
-      native_view_getter_(native_view_getter) {}
-
-WakeLockContextProvider::~WakeLockContextProvider() {}
-
-void WakeLockContextProvider::GetWakeLockContextForID(
-    int context_id,
-    mojo::InterfaceRequest<mojom::WakeLockContext> request) {
-  mojo::MakeStrongBinding(
-      base::MakeUnique<WakeLockServiceContext>(context_id, file_task_runner_,
-                                               native_view_getter_),
-      std::move(request));
-}
-
-}  // namespace device