bluetooth: Use WebBluetoothDeviceId instead of string

content/common/bluetooth/bluetooth_device_id_struct_traits.h

Index: content/common/bluetooth/bluetooth_device_id_struct_traits.h
diff --git a/content/common/bluetooth/bluetooth_device_id_struct_traits.h b/content/common/bluetooth/bluetooth_device_id_struct_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..70b154861b3cd38495a9ebf2b10c1cedca917eb3
--- /dev/null
+++ b/content/common/bluetooth/bluetooth_device_id_struct_traits.h
@@ -0,0 +1,40 @@
+// 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_COMMON_BLUETOOTH_BLUETOOTH_DEVICE_ID_STRUCT_TRAITS_H_
+#define CONTENT_COMMON_BLUETOOTH_BLUETOOTH_DEVICE_ID_STRUCT_TRAITS_H_
+
+#include <string>
+
+#include "base/strings/string_piece.h"
+#include "content/common/bluetooth/bluetooth_device_id.h"
+#include "content/common/bluetooth/bluetooth_device_id.mojom.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<content::mojom::BluetoothDeviceId,
+                    content::BluetoothDeviceId> {
+  static const std::string& device_id(
+      const content::BluetoothDeviceId& device_id) {
+    return device_id.str();
+  }
+
+  static bool Read(content::mojom::BluetoothDeviceIdDataView input,
+                   content::BluetoothDeviceId* output) {
+    std::string result;
+
+    if (!input.ReadDeviceId(&result))
+      return false;
+    if (!content::BluetoothDeviceId::IsValid(result))
+      return false;
+
+    *output = content::BluetoothDeviceId(std::move(result));
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // CONTENT_COMMON_BLUETOOTH_BLUETOOTH_DEVICE_ID_STRUCT_TRAITS_H_