DiscardPixels     372 cc/output/direct_renderer.cc     DiscardPixels(has_external_stencil_test, draw_rect_covers_full_surface);
DiscardPixels     108 cc/output/direct_renderer.h   virtual void DiscardPixels(bool has_external_stencil_test,
DiscardPixels     115 cc/output/gl_renderer.h   virtual void DiscardPixels(bool has_external_stencil_test,
DiscardPixels      60 cc/output/software_renderer.h   virtual void DiscardPixels(bool has_external_stencil_test,