[Ozone] Fix build

content/browser/compositor/software_output_device_ozone.cc

Index: content/browser/compositor/software_output_device_ozone.cc
diff --git a/content/browser/compositor/software_output_device_ozone.cc b/content/browser/compositor/software_output_device_ozone.cc
index 62d8bce3347aed164efea86ed465ae2024b704aa..98c111d5cc8c975771c0ed4a1f6d57829f380337 100644
--- a/content/browser/compositor/software_output_device_ozone.cc
+++ b/content/browser/compositor/software_output_device_ozone.cc
@@ -43,7 +43,7 @@ SkCanvas* SoftwareOutputDeviceOzone::BeginPaint(const gfx::Rect& damage_rect) {
   DCHECK(gfx::Rect(viewport_pixel_size_).Contains(damage_rect));
 
   // Get canvas for next frame.
-  canvas_ = surface_ozone_->GetCanvas();
+  surface_ = surface_ozone_->GetSurface();
 
   return SoftwareOutputDevice::BeginPaint(damage_rect);
 }