cc: Remove things from OutputSurface and CompositorFrameSink.

android_webview/browser/parent_output_surface.cc

Index: android_webview/browser/parent_output_surface.cc
diff --git a/android_webview/browser/parent_output_surface.cc b/android_webview/browser/parent_output_surface.cc
index 293683cd3f5045881b549a98dab0f7a078ec6371..4fe64336cf155638c5e89310426b202388bb1d41 100644
--- a/android_webview/browser/parent_output_surface.cc
+++ b/android_webview/browser/parent_output_surface.cc
@@ -13,7 +13,7 @@ namespace android_webview {
 
 ParentOutputSurface::ParentOutputSurface(
     scoped_refptr<AwRenderThreadContextProvider> context_provider)
-    : cc::OutputSurface(std::move(context_provider), nullptr, nullptr) {
+    : cc::OutputSurface(std::move(context_provider)) {
   stencil_state_.stencil_test_enabled = false;
 }