Ozone X11 platform

ui/ozone/public/surface_ozone_egl.h

Index: ui/ozone/public/surface_ozone_egl.h
diff --git a/ui/ozone/public/surface_ozone_egl.h b/ui/ozone/public/surface_ozone_egl.h
index 4f38f06b2117c2e2605af9bd2f86d1f4c92a871c..ea8d1634d7cca870dae40595d08cea59285612db 100644
--- a/ui/ozone/public/surface_ozone_egl.h
+++ b/ui/ozone/public/surface_ozone_egl.h
@@ -44,6 +44,9 @@ class OZONE_BASE_EXPORT SurfaceOzoneEGL {
   // outside of the sandbox, they must have been completed in
   // InitializeHardware. Returns an empty scoped_ptr on error.
   virtual scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() = 0;
+
+  // Returns true if the underlying implementation supports partial swap.
+  virtual bool SupportsPartialSwap() = 0;
 };
 
 }  // namespace ui