cc: Partial draw without partial swap support.

ui/compositor/test/in_process_context_factory.cc

Index: ui/compositor/test/in_process_context_factory.cc
diff --git a/ui/compositor/test/in_process_context_factory.cc b/ui/compositor/test/in_process_context_factory.cc
index aecb9b792c2f1a2993f2c0c00bf0d7080ee97b28..b91cf9373abc4e950acc696251acbaf0a2864094 100644
--- a/ui/compositor/test/in_process_context_factory.cc
+++ b/ui/compositor/test/in_process_context_factory.cc
@@ -112,6 +112,7 @@ class DirectOutputSurface : public cc::OutputSurface {
   bool SurfaceIsSuspendForRecycle() const override { return false; }
   bool HasExternalStencilTest() const override { return false; }
   void ApplyExternalStencil() override {}
+  bool CanPartialDraw(const gfx::Rect& damage) override { return false; }
 
  private:
   void OnSwapBuffersComplete() { client_->DidReceiveSwapBuffersAck(); }