FindDamageDifferenceFrom 160 content/renderer/gpu/compositor_software_output_device.cc current->FindDamageDifferenceFrom(previous, ®ion) || FindDamageDifferenceFrom 161 content/renderer/gpu/compositor_software_output_device.cc previous->FindDamageDifferenceFrom(current, ®ion); FindDamageDifferenceFrom 60 content/renderer/gpu/compositor_software_output_device.h bool FindDamageDifferenceFrom(Buffer* buffer, SkRegion* result) const;