bluetooth: Move writeValue to mojo

content/browser/bluetooth/web_bluetooth_service_impl.h

+// Copyright 2016 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 CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_
+#define CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_
+
+#include "base/macros.h"
+#include "content/browser/bad_message.h"
+#include "content/common/content_export.h"
+#include "device/bluetooth/bluetooth_gatt_service.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom.h"
+
+namespace url {
+class Origin;
+}  // namespace url
+
+namespace content {
+
+class BluetoothDispatcherHost;
+class RenderFrameHost;
+class RenderProcessHost;
+
+class WebBluetoothServiceImpl : public blink::mojom::WebBluetoothService {
+ public:
+  WebBluetoothServiceImpl(RenderFrameHost* render_frame_host,
+                          blink::mojom::WebBluetoothServiceRequest request);
+  ~WebBluetoothServiceImpl() override;
+
+ private:
+  // WebBluetoothService methods:
+  void RemoteCharacteristicWriteValue(
+      const mojo::String& characteristic_instance_id,
+      mojo::Array<uint8_t> value,
+      const RemoteCharacteristicWriteValueCallback& callback) override;
+
+  // Callbacks for BluetoothGattCharacteristic::WriteRemoteCharacteristic.
+  void OnWriteValueSuccess(
+      const RemoteCharacteristicWriteValueCallback& callback);
+  void OnWriteValueFailed(
+      const RemoteCharacteristicWriteValueCallback& callback,
+      device::BluetoothGattService::GattErrorCode error_code);
+
+  BluetoothDispatcherHost* GetBluetoothDispatcherHost();
+  void CrashRendererAndClosePipe(bad_message::BadMessageReason reason);
+  url::Origin GetOrigin();
+
+  RenderFrameHost* render_frame_host_;
+  RenderProcessHost* render_process_host_;
+
+  mojo::Binding<blink::mojom::WebBluetoothService> binding_;

[Jeffrey Yasskin, 2016/03/25 00:48:23]

Why is this just a 'Binding' while the testing service was a 'StrongBinding'?

[ortuno, 2016/03/29 17:58:34]

StrongBinding will delete the service if the connection is terminated or an
error occurs. I rather explicitly manage the lifetime of the service than to
rely on the pipe closing. For that reason I decided to use Binding and have the
Render Frame Host own this service. I added a comment for the class and for this
specific member.

+
+  // |weak_ptr_on_ui_thread_| provides weak pointers, e.g. for callbacks, and
+  // because it exists and has been bound to the UI thread enforces that all
+  // copies verify they are also used on the UI thread.
+  base::WeakPtr<WebBluetoothServiceImpl> weak_ptr_on_ui_thread_;
+  base::WeakPtrFactory<WebBluetoothServiceImpl> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebBluetoothServiceImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_