Add GetWakeLockWithoutContext() in WakeLockContextProvider mojo interface.

device/wake_lock/wake_lock_context_provider.h

Index: device/wake_lock/wake_lock_context_provider.h
diff --git a/device/wake_lock/wake_lock_context_provider.h b/device/wake_lock/wake_lock_context_provider.h
deleted file mode 100644
index 36c8c759a4f9b922785794f36cfafa7ef8b4d4c5..0000000000000000000000000000000000000000
--- a/device/wake_lock/wake_lock_context_provider.h
+++ /dev/null
@@ -1,44 +0,0 @@
-// 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.
-
-#ifndef DEVICE_WAKE_LOCK_WAKE_LOCK_CONTEXT_PROVIDER_H_
-#define DEVICE_WAKE_LOCK_WAKE_LOCK_CONTEXT_PROVIDER_H_
-
-#include "base/sequenced_task_runner.h"
-#include "device/wake_lock/public/interfaces/wake_lock_context.mojom.h"
-#include "device/wake_lock/public/interfaces/wake_lock_context_provider.mojom.h"
-#include "device/wake_lock/wake_lock_service_context.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace device {
-
-// Serves requests for WakeLockContext connections.
-class WakeLockContextProvider : public mojom::WakeLockContextProvider {
- public:
-  WakeLockContextProvider(
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
-      const WakeLockContextCallback& native_view_getter);
-  ~WakeLockContextProvider() override;
-
-  static void Create(
-      mojom::WakeLockContextProviderRequest request,
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
-      const WakeLockContextCallback& native_view_getter);
-
-  // mojom::WakeLockContextProvider:
-  void GetWakeLockContextForID(
-      int context_id,
-      mojo::InterfaceRequest<mojom::WakeLockContext> request) override;
-
- private:
-  scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
-  WakeLockContextCallback native_view_getter_;
-
-  DISALLOW_COPY_AND_ASSIGN(WakeLockContextProvider);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_WAKE_LOCK_WAKE_LOCK_CONTEXT_PROVIDER_H_