Add chrome://usb-internals page for adding and removing test devices.

chrome/browser/ui/webui/usb_internals/usb_internals_page_handler.cc

+// 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.
+
+#include "chrome/browser/ui/webui/usb_internals/usb_internals_page_handler.h"
+
+#include "base/macros.h"
+#include "base/strings/string16.h"
+#include "base/strings/utf_string_conversions.h"
+#include "device/core/device_client.h"
+#include "device/usb/usb_device.h"
+#include "device/usb/usb_device_handle.h"
+#include "device/usb/usb_service.h"
+#include "device/usb/webusb_descriptors.h"
+#include "url/gurl.h"
+
+namespace {
+
+class TestUsbDevice : public device::UsbDevice {
+ public:
+  TestUsbDevice(const std::string& name,
+                const std::string& serial_number,
+                const GURL& landing_page,
+                const GURL& allowed_origin);
+
+  // device::UsbDevice overrides:
+  void Open(const OpenCallback& callback) override;
+
+ private:
+  ~TestUsbDevice() override;
+
+  DISALLOW_COPY_AND_ASSIGN(TestUsbDevice);
+};
+
+TestUsbDevice::TestUsbDevice(const std::string& name,
+                             const std::string& serial_number,
+                             const GURL& landing_page,
+                             const GURL& allowed_origin)
+    : UsbDevice(0x0210,
+                0xff,
+                0xff,
+                0xff,
+                0x0000,
+                0x000,
+                0x0100,
+                base::string16(),
+                base::UTF8ToUTF16(name),
+                base::UTF8ToUTF16(serial_number)) {
+  webusb_allowed_origins_.reset(new device::WebUsbAllowedOrigins());
+  webusb_allowed_origins_->origins.push_back(allowed_origin);
+  webusb_landing_page_ = landing_page;
+}
+
+void TestUsbDevice::Open(const OpenCallback& callback) {
+  callback.Run(nullptr);
+}
+
+TestUsbDevice::~TestUsbDevice() {}
+
+}  // namespace
+
+UsbInternalsPageHandler::UsbInternalsPageHandler(
+    mojom::UsbInternalsPageHandlerRequest request)
+    : binding_(this, std::move(request)) {}
+
+UsbInternalsPageHandler::~UsbInternalsPageHandler() {}
+
+void UsbInternalsPageHandler::AddDeviceForTesting(
+    const std::string& name,
+    const std::string& serial_number,
+    const std::string& landing_page,
+    const std::string& allowed_origin,
+    const AddDeviceForTestingCallback& callback) {
+  device::UsbService* service = device::DeviceClient::Get()->GetUsbService();
+  if (service) {
+    GURL landing_page_url(landing_page);
+    if (!landing_page_url.is_valid()) {
+      callback.Run(false, "Landing page URL is invalid.");
+      return;
+    }
+
+    GURL allowed_origin_url(allowed_origin);
+    if (!allowed_origin_url.is_valid()) {
+      callback.Run(false, "Allowed origin is invalid.");
+      return;
+    }
+
+    service->AddDeviceForTesting(new TestUsbDevice(
+        name, serial_number, landing_page_url, allowed_origin_url));
+    callback.Run(true, "Added.");
+  } else {
+    callback.Run(false, "USB service unavailable.");
+  }
+}
+
+void UsbInternalsPageHandler::RemoveDeviceForTesting(
+    const std::string& guid,
+    const RemoveDeviceForTestingCallback& callback) {
+  device::UsbService* service = device::DeviceClient::Get()->GetUsbService();
+  if (service)
+    service->RemoveDeviceForTesting(guid);
+  callback.Run();
+}
+
+void UsbInternalsPageHandler::GetTestDevices(
+    const GetTestDevicesCallback& callback) {
+  std::vector<scoped_refptr<device::UsbDevice>> devices;
+  device::UsbService* service = device::DeviceClient::Get()->GetUsbService();
+  if (service)
+    service->GetTestDevices(&devices);
+  std::vector<mojom::TestDeviceInfoPtr> result;
+  result.reserve(devices.size());
+  for (const auto& device : devices) {
+    auto device_info = mojom::TestDeviceInfo::New();
+    device_info->guid = device->guid();
+    device_info->name = base::UTF16ToUTF8(device->product_string());
+    device_info->serial_number = base::UTF16ToUTF8(device->serial_number());
+    device_info->landing_page = device->webusb_landing_page();
+    if (device->webusb_allowed_origins() &&
+        !device->webusb_allowed_origins()->origins.empty()) {
+      device_info->allowed_origin =
+          url::Origin(device->webusb_allowed_origins()->origins.front());
+    }
+    result.push_back(std::move(device_info));
+  }
+  callback.Run(std::move(result));
+}