[System-Keyboard-Lock] Forward navigator functions to RenderFrameHost

content/browser/keyboard_lock/keyboard_lock_service_impl.h

+// 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 <string>
+#include <vector>
+
+#include "content/common/content_export.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom.h"
+
+namespace content {
+
+class RenderFrameHost;
+
+class CONTENT_EXPORT KeyboardLockServiceImpl
+    : public NON_EXPORTED_BASE(blink::mojom::KeyboardLockService) {
+ public:
+  ~KeyboardLockServiceImpl() override;
+
+  static void CreateMojoService(
+      RenderFrameHost* render_frame_host,
+      blink::mojom::KeyboardLockServiceRequest request);
+
+  void RequestKeyLock(const std::vector<std::string>& key_codes,

[dcheng, 2017/04/26 13:27:17]

Nit: Add a comment like

// blink::mojom::KeyboardLockService overrides:

[Hzj_jie, 2017/04/26 22:05:56]

Done.

+                      const RequestKeyLockCallback& callback) override;
+  void CancelKeyLock() override;
+
+ private:
+  explicit KeyboardLockServiceImpl(
+      blink::mojom::KeyboardLockServiceRequest request);
+
+  const mojo::Binding<blink::mojom::KeyboardLockService> binding_;
+};
+
+}  // namespace