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/common/request_impl.cc

@@ -49,8 +49,8 @@ class BytesElementReader : public net::UploadBytesElementReader {
 base::TaskRunner* GetFileTaskRunner() {
   scoped_refptr<base::SequencedTaskRunner> task_runner =
       CefTaskRunnerImpl::GetTaskRunner(TID_FILE);
-  DCHECK(task_runner);
-  return task_runner;
+  DCHECK(task_runner.get());
+  return task_runner.get();
 }
 
 // A subclass of net::UploadFileElementReader that keeps the associated