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;
+
+// Implementation of Mojo WebBluetoothService located in
+// third_party/WebKit/public/platform/modules/bluetooth.
+// It handles Web Bluetooth API requests coming from Blink / renderer
+// process and uses the platform abstraction of device/bluetooth.
+// WebBluetoothServiceImpl is not thread-safe and should be created on the
+// UI thread as required by device/bluetooth.
+// This class is instantiated on-demand via Mojo's ConnectToRemoteService
+// from the renderer when the first Web Bluetooth API request is handled.
+// RenderFrameHostImpl will create an instance of this class and keep
+// ownership of it.
+class WebBluetoothServiceImpl : public blink::mojom::WebBluetoothService {
+ public:
+  // |render_frame_host|: The RFH that owns this instance.
+  // |request|: The instance will be bound to this request's pipe.
+  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);
+
+  RenderProcessHost* GetRenderProcessHost();
+  BluetoothDispatcherHost* GetBluetoothDispatcherHost();
+  void CrashRendererAndClosePipe(bad_message::BadMessageReason reason);
+  url::Origin GetOrigin();
+
+  // The RFH that owns this instance.
+  RenderFrameHost* render_frame_host_;
+
+  // The lifetime of this instance is exclusively managed by the RFH that
+  // owns it so we use a "Binding" as opposed to a "StrongBinding" which deletes
+  // the service on pipe connection errors.
+  mojo::Binding<blink::mojom::WebBluetoothService> binding_;
+
+  base::WeakPtrFactory<WebBluetoothServiceImpl> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebBluetoothServiceImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_