cc: Remove use of PassAs() and constructor-casting with scoped_ptr.

cc/test/fake_layer_tree_host_client.cc

Index: cc/test/fake_layer_tree_host_client.cc
diff --git a/cc/test/fake_layer_tree_host_client.cc b/cc/test/fake_layer_tree_host_client.cc
index 087cbb150e239f5f4b00a66e692eb33295edc843..17ed10c0af5b9f81d906760fc5313b253cfac987 100644
--- a/cc/test/fake_layer_tree_host_client.cc
+++ b/cc/test/fake_layer_tree_host_client.cc
@@ -27,17 +27,15 @@ void FakeLayerTreeHostClient::RequestNewOutputSurface(bool fallback) {
   if (use_software_rendering_) {
     if (use_delegating_renderer_) {
       surface = FakeOutputSurface::CreateDelegatingSoftware(
-                    make_scoped_ptr(new SoftwareOutputDevice))
-                    .PassAs<OutputSurface>();
+          make_scoped_ptr(new SoftwareOutputDevice));
     } else {
       surface = FakeOutputSurface::CreateSoftware(
-                    make_scoped_ptr(new SoftwareOutputDevice))
-                    .PassAs<OutputSurface>();
+          make_scoped_ptr(new SoftwareOutputDevice));
     }
   } else if (use_delegating_renderer_) {
-    surface = FakeOutputSurface::CreateDelegating3d().PassAs<OutputSurface>();
+    surface = FakeOutputSurface::CreateDelegating3d();
   } else {
-    surface = FakeOutputSurface::Create3d().PassAs<OutputSurface>();
+    surface = FakeOutputSurface::Create3d();
   }
   host_->SetOutputSurface(surface.Pass());
 }