Add a new metric for how many times permissions prompts are shown.

chrome/browser/custom_handlers/register_protocol_handler_permission_request.cc

 // Copyright 2014 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/custom_handlers/register_protocol_handler_permission_request.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 94 matching lines @@
 
 void RegisterProtocolHandlerPermissionRequest::Cancelled() {
   content::RecordAction(
       base::UserMetricsAction("RegisterProtocolHandler.InfoBar_Deny"));
   registry_->OnIgnoreRegisterProtocolHandler(handler_);
 }
 
 void RegisterProtocolHandlerPermissionRequest::RequestFinished() {
   delete this;
 }
+
+PermissionBubbleType
+RegisterProtocolHandlerPermissionRequest::GetPermissionBubbleType() const {
+  return PermissionBubbleType::REGISTER_PROTOCOL_HANDLER;
+}