tests: Use runPendingTasks instead of WebThread::enterRunLoop()/exitRunLoop()

Source/web/tests/FrameTestHelpers.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 49 matching lines @@
 // Same as above, but for WebFrame::loadHistoryItem().
 void loadHistoryItem(WebFrame*, const WebHistoryItem&, WebHistoryLoadType, WebURLRequest::CachePolicy);
 // Same as above, but for WebFrame::reload().
 void reloadFrame(WebFrame*);
 void reloadFrameIgnoringCache(WebFrame*);
 
 // Pumps pending resource requests while waiting for a frame to load. Don't use
 // this. Use one of the above helpers.
 void pumpPendingRequestsDoNotUse(WebFrame*);
 
-void runPendingTasks();
-
 // Convenience class for handling the lifetime of a WebView and its associated mainframe in tests.
 class WebViewHelper {
     WTF_MAKE_NONCOPYABLE(WebViewHelper);
 public:
     WebViewHelper();
     ~WebViewHelper();
 
     // Creates and initializes the WebView. Implicitly calls reset() first. IF a
     // WebFrameClient or a WebViewClient are passed in, they must outlive the
     // WebViewHelper.
@@ skipping 65 matching lines @@
     {
         Settings::setMockScrollbarsEnabled(false);
         RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(false);
     }
 };
 
 } // namespace FrameTestHelpers
 } // namespace blink
 
 #endif // FrameTestHelpers_h