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

cc/output/renderer_unittest.cc

Index: cc/output/renderer_unittest.cc
diff --git a/cc/output/renderer_unittest.cc b/cc/output/renderer_unittest.cc
index 1d54608ee7a446e02e0bc3b646e7ced5757b0f7a..99ff89d569388346406ee7bbc4276bbc6db9975c 100644
--- a/cc/output/renderer_unittest.cc
+++ b/cc/output/renderer_unittest.cc
@@ -38,8 +38,7 @@ scoped_ptr<Renderer> CreateRenderer<DelegatingRenderer>(
     OutputSurface* output_surface,
     ResourceProvider* resource_provider) {
   return DelegatingRenderer::Create(
-             client, settings, output_surface, resource_provider)
-      .PassAs<Renderer>();
+      client, settings, output_surface, resource_provider);
 }
 
 template <>
@@ -49,8 +48,7 @@ scoped_ptr<Renderer> CreateRenderer<GLRenderer>(
     OutputSurface* output_surface,
     ResourceProvider* resource_provider) {
   return GLRenderer::Create(
-             client, settings, output_surface, resource_provider, NULL, 0)
-      .PassAs<Renderer>();
+      client, settings, output_surface, resource_provider, NULL, 0);
 }
 
 template <typename T>