Record metrics for permission prompt acceptance vs. user gesture.

chrome/browser/ui/website_settings/permission_bubble_request.cc

+// 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/website_settings/permission_bubble_request.h"
+
+#include "ui/gfx/vector_icons_public.h"
+
+gfx::VectorIconId PermissionBubbleRequest::GetVectorIconId() const {
+  return gfx::VectorIconId::VECTOR_ICON_NONE;
+}
+
+PermissionBubbleType PermissionBubbleRequest::GetPermissionBubbleType() const {
+  return PermissionBubbleType::UNKNOWN;
+}
+
+PermissionBubbleGestureType PermissionBubbleRequest::GetGestureType() const {
+  return PermissionBubbleGestureType::UNKNOWN;
+}