Make ui::Compositor use ui::Scheduler

ui/compositor/test/in_process_context_factory.cc

Index: ui/compositor/test/in_process_context_factory.cc
diff --git a/ui/compositor/test/in_process_context_factory.cc b/ui/compositor/test/in_process_context_factory.cc
index d51120a07e32d7de587930a38d9c5e011efa9416..16ccfd837f4df6ef5de91fdb1ab3411ffe1b2f1a 100644
--- a/ui/compositor/test/in_process_context_factory.cc
+++ b/ui/compositor/test/in_process_context_factory.cc
@@ -62,8 +62,10 @@ class DirectOutputSurface : public cc::OutputSurface {
 
 }  // namespace
 
-InProcessContextFactory::InProcessContextFactory()
-    : next_surface_id_namespace_(1u), use_test_surface_(true) {
+InProcessContextFactory::InProcessContextFactory(bool context_factory_for_test)
+    : next_surface_id_namespace_(1u),
+      use_test_surface_(true),
+      context_factory_for_test_(context_factory_for_test) {
   DCHECK_NE(gfx::GetGLImplementation(), gfx::kGLImplementationNone)
       << "If running tests, ensure that main() is calling "
       << "gfx::GLSurface::InitializeOneOffForTests()";
@@ -140,7 +142,9 @@ InProcessContextFactory::SharedMainThreadContextProvider() {
 
 void InProcessContextFactory::RemoveCompositor(Compositor* compositor) {}
 
-bool InProcessContextFactory::DoesCreateTestContexts() { return false; }
+bool InProcessContextFactory::DoesCreateTestContexts() {
+  return context_factory_for_test_;
+}
 
 cc::SharedBitmapManager* InProcessContextFactory::GetSharedBitmapManager() {
   return &shared_bitmap_manager_;