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..de6c46256f45b0fd91c75bf91debfa434949f43f
--- /dev/null
+++ b/chrome/browser/usb/usb_chooser_bubble_delegate.h
@@ -0,0 +1,41 @@
+// 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 "chrome/browser/ui/website_settings/chooser_bubble_delegate.h"
+#include "components/webusb/public/interfaces/webusb_permission_bubble.mojom.h"
+
+namespace content {
+class RenderFrameHost;
+}
+
+class Browser;
+
+// UsbChooserBubbleDelegate creates a chooser bubble for WebUsb.
+class UsbChooserBubbleDelegate : public ChooserBubbleDelegate {
+ public:
+  UsbChooserBubbleDelegate(
+      Browser* browser,
+      mojo::Array<device::usb::DeviceFilterPtr> device_filters,
+      content::RenderFrameHost* render_frame_host,
+      const webusb::WebUsbPermissionBubble::GetPermissionCallback& callback);
+  ~UsbChooserBubbleDelegate() override;
+
+  // BubbleDelegate:
+  scoped_ptr<BubbleUi> BuildBubbleUi() override;
+
+  // ChooserBubbleDelegate:
+  void Select(int index) override;
+  void Cancel() override;
+
+ private:
+  Browser* browser_;
+
+  DISALLOW_COPY_AND_ASSIGN(UsbChooserBubbleDelegate);
+};
+
+#endif  // CHROME_BROWSER_USB_USB_CHOOSER_BUBBLE_DELEGATE_H_