Device Service: Decouple Wake Lock from //content

device/wake_lock/wake_lock_context_provider.cc

Index: device/wake_lock/wake_lock_context_provider.cc
diff --git a/device/wake_lock/wake_lock_context_provider.cc b/device/wake_lock/wake_lock_context_provider.cc
new file mode 100644
index 0000000000000000000000000000000000000000..289b1c64296e0a9fa16fcad911aed53623cae367
--- /dev/null
+++ b/device/wake_lock/wake_lock_context_provider.cc
@@ -0,0 +1,40 @@
+// 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::GetContext(
+    int context_id,
+    mojo::InterfaceRequest<mojom::WakeLockContext> request) {
+  // WakeLockServiceContext owns itself (see the comment on
+  // wake_lock_service_context.h).
+  new WakeLockServiceContext(std::move(request), context_id, file_task_runner_,
+                             native_view_getter_);
+}
+
+}  // namespace device