Fix event warning crash when a listener is removed while dispatching event

components/test_runner/web_frame_test_client.cc

 // Copyright 2016 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 "components/test_runner/web_frame_test_client.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/strings/string_piece.h"
@@ skipping 645 matching lines @@
     delegate_->PrintMessage(" - didFinishLoading\n");
   }
   resource_identifier_map_.erase(identifier);
 }
 
 void WebFrameTestClient::didAddMessageToConsole(
     const blink::WebConsoleMessage& message,
     const blink::WebString& source_name,
     unsigned source_line,
     const blink::WebString& stack_trace) {
+  if (!test_runner_->ShouldDumpConsoleMessages())
+    return;
   std::string level;
   switch (message.level) {
     case blink::WebConsoleMessage::LevelDebug:
       level = "DEBUG";
       break;
     case blink::WebConsoleMessage::LevelLog:
       level = "MESSAGE";
       break;
     case blink::WebConsoleMessage::LevelInfo:
       level = "INFO";
@@ skipping 67 matching lines @@
   else
     callback->onError(blink::WebSetSinkIdError::NotFound);
 }
 
 void WebFrameTestClient::didClearWindowObject(blink::WebLocalFrame* frame) {
   web_test_proxy_base_->test_interfaces()->BindTo(frame);
   web_test_proxy_base_->BindTo(frame);
 }
 
 }  // namespace test_runner