add SkCanvas::drawAtlas

src/core/SkPictureFlat.h

Index: src/core/SkPictureFlat.h
diff --git a/src/core/SkPictureFlat.h b/src/core/SkPictureFlat.h
index 8720e197511066cd2a7a0309ac408d2ea4453136..07411002aed95358ef8475bb9b6ee90cc57e806d 100644
--- a/src/core/SkPictureFlat.h
+++ b/src/core/SkPictureFlat.h
@@ -71,8 +71,9 @@ enum DrawType {
     DRAW_TEXT_BLOB,
     DRAW_IMAGE,
     DRAW_IMAGE_RECT,
+    DRAW_ATLAS,
 
-    LAST_DRAWTYPE_ENUM = DRAW_IMAGE_RECT
+    LAST_DRAWTYPE_ENUM = DRAW_ATLAS
 };
 
 // In the 'match' method, this constant will match any flavor of DRAW_BITMAP*
@@ -85,6 +86,11 @@ enum DrawVertexFlags {
     DRAW_VERTICES_HAS_XFER    = 0x08,
 };
 
+enum DrawAtlasFlags {
+    DRAW_ATLAS_HAS_COLORS   = 1 << 0,
+    DRAW_ATLAS_HAS_CULL     = 1 << 1,
+};
+
 ///////////////////////////////////////////////////////////////////////////////
 // clipparams are packed in 5 bits
 //  doAA:1 | regionOp:4