Add chrome side webusb permission UI code

chrome/browser/usb/usb_chooser_choices.h

Index: chrome/browser/usb/usb_chooser_choices.h
diff --git a/chrome/browser/usb/usb_chooser_choices.h b/chrome/browser/usb/usb_chooser_choices.h
new file mode 100644
index 0000000000000000000000000000000000000000..ee9ba245d87809fa894597d93c2f2681b631f33f
--- /dev/null
+++ b/chrome/browser/usb/usb_chooser_choices.h
@@ -0,0 +1,60 @@
+// Copyright 2015 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 CHROME_BROWSER_USB_USB_CHOOSER_CHOICES_H_
+#define CHROME_BROWSER_USB_USB_CHOOSER_CHOICES_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/scoped_observer.h"
+#include "chrome/browser/ui/website_settings/chooser_choices.h"
+#include "components/webusb/public/interfaces/webusb_permission_bubble.mojom.h"
+#include "device/usb/usb_service.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/array.h"
+#include "url/gurl.h"
+
+namespace content {
+class RenderFrameHost;
+}
+
+namespace device {
+class UsbDevice;
+class UsbDeviceFilter;
+}
+
+class UsbChooserChoices : public ChooserChoices,
+                          public device::UsbService::Observer {
+ public:
+  UsbChooserChoices(
+      mojo::Array<device::usb::DeviceFilterPtr> device_filters,
+      content::RenderFrameHost* render_frame_host,
+      const webusb::WebUsbPermissionBubble::GetPermissionCallback& callback);
+  ~UsbChooserChoices() override;
+
+  // ChooserChoices:
+  const std::vector<std::string>& GetChoices() const override;
+  void Select(int index) override;
+
+  // device::UsbService::Observer:
+  void OnDeviceAdded(scoped_refptr<device::UsbDevice> device) override;
+  void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
+
+  void GetUsbDevicesList(
+      const std::vector<scoped_refptr<device::UsbDevice>>& devices);
+
+ private:
+  std::vector<scoped_refptr<device::UsbDevice>> devices_;
+  std::vector<std::string> devices_names_;
+  mojo::Array<device::usb::DeviceFilterPtr> device_filters_;
+  std::vector<device::UsbDeviceFilter> filters_;
+  GURL origin_;
+  content::RenderFrameHost* const render_frame_host_;
+  webusb::WebUsbPermissionBubble::GetPermissionCallback callback_;
+  ScopedObserver<device::UsbService, device::UsbService::Observer>
+      usb_service_observer_;
+
+  DISALLOW_COPY_AND_ASSIGN(UsbChooserChoices);
+};
+
+#endif  // CHROME_BROWSER_USB_USB_CHOOSER_CHOICES_H_