Revert of cc: Move worker context BindToCurrentThread/SetupLock calls out of cc::OutputSurface.

ui/compositor/test/in_process_context_provider.cc

Index: ui/compositor/test/in_process_context_provider.cc
diff --git a/ui/compositor/test/in_process_context_provider.cc b/ui/compositor/test/in_process_context_provider.cc
index a6c8d3abe67027b0ca9d095433ffce96056f5a96..76cd19dc191ff8624982205a2d93b573b0058ecb 100644
--- a/ui/compositor/test/in_process_context_provider.cc
+++ b/ui/compositor/test/in_process_context_provider.cc
@@ -218,9 +218,7 @@
 }
 
 void InProcessContextProvider::OnLostContext() {
-  // Note: no thread check here as this should not change the thread for which
-  // this context is currently bound. e.g. a worker context might be unbound
-  // and this should not result in it being bound to the current thread.
+  DCHECK(context_thread_checker_.CalledOnValidThread());
   {
     base::AutoLock lock(destroyed_lock_);
     if (destroyed_)