Remove unused blitting functions from ui/gfx/blit.cc

ui/gfx/blit.h

Index: ui/gfx/blit.h
diff --git a/ui/gfx/blit.h b/ui/gfx/blit.h
index af56636bce7e2562cd8052cc7cc2a7ab8ca2c1ff..f568dc47dd4254f43090ba11412aa02578afc44e 100644
--- a/ui/gfx/blit.h
+++ b/ui/gfx/blit.h
@@ -22,18 +22,6 @@ GFX_EXPORT void BlitContextToContext(NativeDrawingContext dst_context,
                                      NativeDrawingContext src_context,
                                      const Point& src_origin);
 
-// Blits a rectangle from the source context into the destination canvas.
-GFX_EXPORT void BlitContextToCanvas(SkCanvas *dst_canvas,
-                                    const Rect& dst_rect,
-                                    NativeDrawingContext src_context,
-                                    const Point& src_origin);
-
-// Blits a rectangle from the source canvas into the destination context.
-GFX_EXPORT void BlitCanvasToContext(NativeDrawingContext dst_context,
-                                    const Rect& dst_rect,
-                                    SkCanvas *src_canvas,
-                                    const Point& src_origin);
-
 // Blits a rectangle from the source canvas into the destination canvas.
 GFX_EXPORT void BlitCanvasToCanvas(SkCanvas *dst_canvas,
                                    const Rect& dst_rect,