Initialize the Display's renderer when the Display is initialized.

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 e02110db20f5d78c0070846fd5a3e8c4017ee9d5..0a71c73807d110315a512764a33ee01f26feaf12 100644
--- a/cc/output/renderer_unittest.cc
+++ b/cc/output/renderer_unittest.cc
@@ -63,8 +63,8 @@ std::unique_ptr<Renderer> CreateRenderer<DelegatingRenderer>(
     const RendererSettings* settings,
     OutputSurface* output_surface,
     ResourceProvider* resource_provider) {
-  return DelegatingRenderer::Create(
-      client, settings, output_surface, resource_provider);
+  return base::MakeUnique<DelegatingRenderer>(client, settings, output_surface,
+                                              resource_provider);
 }
 
 template <>
@@ -73,8 +73,8 @@ std::unique_ptr<Renderer> CreateRenderer<GLRenderer>(
     const RendererSettings* settings,
     OutputSurface* output_surface,
     ResourceProvider* resource_provider) {
-  return GLRenderer::Create(
-      client, settings, output_surface, resource_provider, NULL, 0);
+  return base::MakeUnique<GLRenderer>(client, settings, output_surface,
+                                      resource_provider, nullptr, 0);
 }
 
 template <typename T>