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

cc/output/software_renderer.cc

Index: cc/output/software_renderer.cc
diff --git a/cc/output/software_renderer.cc b/cc/output/software_renderer.cc
index ddc5e4c1a1a09fa5560ae438361c888737016c51..2aeaead0e253753def8104752139bad4e5cbb43c 100644
--- a/cc/output/software_renderer.cc
+++ b/cc/output/software_renderer.cc
@@ -51,15 +51,6 @@ bool IsScaleAndIntegerTranslate(const SkMatrix& matrix) {
 
 }  // anonymous namespace
 
-std::unique_ptr<SoftwareRenderer> SoftwareRenderer::Create(
-    RendererClient* client,
-    const RendererSettings* settings,
-    OutputSurface* output_surface,
-    ResourceProvider* resource_provider) {
-  return base::WrapUnique(new SoftwareRenderer(client, settings, output_surface,
-                                               resource_provider));
-}
-
 SoftwareRenderer::SoftwareRenderer(RendererClient* client,
                                    const RendererSettings* settings,
                                    OutputSurface* output_surface,