Fire an accessible click event when a web node is clicked on.

components/test_runner/web_test_proxy.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 "components/test_runner/web_test_proxy.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cctype>
@@ skipping 701 matching lines @@
       break;
     case blink::WebAXEventBlur:
       event_name = "Blur";
       break;
     case blink::WebAXEventCheckedStateChanged:
       event_name = "CheckedStateChanged";
       break;
     case blink::WebAXEventChildrenChanged:
       event_name = "ChildrenChanged";
       break;
+    case blink::WebAXEventClicked:
+      event_name = "Clicked";
+      break;
     case blink::WebAXEventDocumentSelectionChanged:
       event_name = "DocumentSelectionChanged";
       break;
     case blink::WebAXEventFocus:
       event_name = "Focus";
       break;
     case blink::WebAXEventHide:
       event_name = "Hide";
       break;
     case blink::WebAXEventHover:
@@ skipping 601 matching lines @@
     callback->onError(blink::WebSetSinkIdError::NotAuthorized);
   else
     callback->onError(blink::WebSetSinkIdError::NotFound);
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
   return blink::WebString::fromUTF8(accept_languages_);
 }
 
 }  // namespace test_runner