Add chrome side webusb permission UI code

chrome/browser/ui/views/website_settings/chooser_bubble_delegate.cc

Index: chrome/browser/ui/views/website_settings/chooser_bubble_delegate.cc
diff --git a/chrome/browser/ui/views/website_settings/chooser_bubble_delegate.cc b/chrome/browser/ui/views/website_settings/chooser_bubble_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..442cdded6be3ea14680fe8c8463cb43b4df037cc
--- /dev/null
+++ b/chrome/browser/ui/views/website_settings/chooser_bubble_delegate.cc
@@ -0,0 +1,26 @@
+// 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.
+
+#include "chrome/browser/ui/views/website_settings/chooser_bubble_delegate.h"
+
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/views/website_settings/chooser_bubble_ui.h"
+#include "chrome/browser/usb/web_usb_permission_bubble_request.h"
+
+ChooserBubbleDelegate::ChooserBubbleDelegate(
+    Browser* browser,
+    scoped_ptr<WebUsbPermissionBubbleRequest> request)
+    : browser_(browser), request_(request.Pass()) {
+  DCHECK(browser_);
+}
+
+ChooserBubbleDelegate::~ChooserBubbleDelegate() {}
+
+scoped_ptr<BubbleUi> ChooserBubbleDelegate::BuildBubbleUi() {
+  return scoped_ptr<BubbleUi>(new ChooserBubbleUi(browser_, request_.get()));
+}
+
+std::string ChooserBubbleDelegate::GetName() const {
+  return "ExtensionInstalled";

[Reilly Grant (use Gerrit), 2015/10/20 22:17:07]

What?

[juncai, 2015/10/23 03:36:42]

https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/ui/...
In order to not get DCHECK error, the bubble's GetName() has to be either:
"MockBubble" or "ExtensionInstalled".

+}