Update to Chromium revision b0aa1fb5 (#296183).

- Restore CefRenderHandler::OnScrollOffsetChanged.
- Add new RT_PING and RT_SERVICE_WORKER resource type values.
- The resource type for image sub-resource loads has changed from RT_IMAGE to RT_PREFETCH (this is a regression, see http://crbug.com/415253#c23).
- Add a patch to fix a crash in Scheduler::swapQueuesRunPendingTasks* (http://crbug.com/415478).
- Add documentation for cef_key_event_type_t values.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1846 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/scheme_impl.cc

@@ -265,7 +265,7 @@ class CefUrlRequestManager {
     net::URLRequestJob* job = NULL;
     CefRefPtr<CefSchemeHandlerFactory> factory =
         GetHandlerFactory(request, scheme);
-    if (factory) {
+    if (factory.get()) {
       CefRefPtr<CefBrowserHostImpl> browser =
           CefBrowserHostImpl::GetBrowserForRequest(request);
       CefRefPtr<CefFrame> frame;