Update to Chromium revision ad468e8b (#292352).

- Building Chromium using SVN is no longer supported.
- Remove CefDOMEvent and CefDOMEventListener (issue #933).
- Remove CefRenderHandler::OnScrollOffsetChanged (http://crbug.com/404656).
- Remove UR_FLAG_REPORT_LOAD_TIMING (https://codereview.chromium.org/451623002/).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1816 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/trace_subscriber.cc

@@ -41,7 +41,9 @@ bool CefTraceSubscriber::BeginTracing(
     done_callback = base::Bind(&CefCompletionCallback::OnComplete, callback);
 
   TracingController::GetInstance()->EnableRecording(
-      categories, TracingController::DEFAULT_OPTIONS, done_callback);
+      base::debug::CategoryFilter(categories),
+      base::debug::TraceOptions(),
+      done_callback);
   return true;
 }