Update to Chromium revision 248478.

- Add new CefSettings.windowless_rendering_enabled value that must be enabled when using windowless (off-screen) rendering.
- Improve naming and documentation for CefWindowInfo members.
- CefBeginTracing now completes asynchronously.
- Rename CefEndTracingAsync to CefEndTracing.
- Rename CefCompletionHandler to CefCompletionCallback.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1592 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

include/cef_cookie.h

@@ -136,11 +136,11 @@ class CefCookieManager : public virtual CefBase {
 
   ///
   // Flush the backing store (if any) to disk and execute the specified
-  // |handler| on the IO thread when done. Returns false if cookies cannot be
+  // |callback| on the IO thread when done. Returns false if cookies cannot be
   // accessed.
   ///
   /*--cef(optional_param=handler)--*/
-  virtual bool FlushStore(CefRefPtr<CefCompletionHandler> handler) =0;
+  virtual bool FlushStore(CefRefPtr<CefCompletionCallback> callback) =0;
 };