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/task_runner_impl.cc

@@ -136,12 +136,12 @@ bool CefTaskRunnerImpl::BelongsToThread(CefThreadId threadId) {
 
 bool CefTaskRunnerImpl::PostTask(CefRefPtr<CefTask> task) {
   return task_runner_->PostTask(FROM_HERE,
-      base::Bind(&CefTask::Execute, task));
+      base::Bind(&CefTask::Execute, task.get()));
 }
 
 bool CefTaskRunnerImpl::PostDelayedTask(CefRefPtr<CefTask> task,
                                         int64 delay_ms) {
   return task_runner_->PostDelayedTask(FROM_HERE,
-        base::Bind(&CefTask::Execute, task),
+        base::Bind(&CefTask::Execute, task.get()),
         base::TimeDelta::FromMilliseconds(delay_ms));
 }