Add chrome side webusb permission UI code

chrome/browser/usb/usb_chooser_bubble_delegate.h

Index: chrome/browser/usb/usb_chooser_bubble_delegate.h
diff --git a/chrome/browser/usb/usb_chooser_bubble_delegate.h b/chrome/browser/usb/usb_chooser_bubble_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..9d06131ff2a7ecf4339d402e4c959ca6698805ef
--- /dev/null
+++ b/chrome/browser/usb/usb_chooser_bubble_delegate.h
@@ -0,0 +1,65 @@
+// 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_BUBBLE_DELEGATE_H_
+#define CHROME_BROWSER_USB_USB_CHOOSER_BUBBLE_DELEGATE_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/scoped_observer.h"
+#include "chrome/browser/ui/website_settings/chooser_bubble_delegate.h"
+#include "components/webusb/public/interfaces/webusb_permission_bubble.mojom.h"
+#include "device/usb/usb_service.h"
+#include "mojo/public/cpp/bindings/array.h"
+
+namespace content {
+class RenderFrameHost;
+}
+
+namespace device {
+class UsbDevice;
+class UsbDeviceFilter;
+}
+
+class Browser;
+
+// UsbChooserBubbleDelegate creates a chooser bubble for WebUsb.
+class UsbChooserBubbleDelegate : public ChooserBubbleDelegate,
+                                 public device::UsbService::Observer {
+ public:
+  UsbChooserBubbleDelegate(
+      Browser* browser,
+      mojo::Array<device::usb::DeviceFilterPtr> device_filters,
+      content::RenderFrameHost* render_frame_host,
+      const webusb::WebUsbPermissionBubble::GetPermissionCallback& callback);
+  ~UsbChooserBubbleDelegate() override;
+
+  // ChooserBubbleDelegate:
+  const std::vector<base::string16>& GetOptions() const override;
+  void Select(int index) override;
+  void Cancel() override;
+  void Close() override;
+
+  // device::UsbService::Observer:
+  void OnDeviceAdded(scoped_refptr<device::UsbDevice> device) override;
+  void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
+
+  void GotUsbDeviceList(
+      const std::vector<scoped_refptr<device::UsbDevice>>& devices);
+
+ private:
+  content::RenderFrameHost* const render_frame_host_;
+  webusb::WebUsbPermissionBubble::GetPermissionCallback callback_;
+  ScopedObserver<device::UsbService, device::UsbService::Observer>
+      usb_service_observer_;
+  std::vector<device::UsbDeviceFilter> filters_;
+  std::vector<scoped_refptr<device::UsbDevice>> devices_;
+  std::vector<base::string16> devices_names_;
+  base::WeakPtrFactory<UsbChooserBubbleDelegate> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(UsbChooserBubbleDelegate);
+};
+
+#endif  // CHROME_BROWSER_USB_USB_CHOOSER_BUBBLE_DELEGATE_H_