Revert "Revert "Make GrAtlasTextOp a non-legacy GrMeshDrawOp""

This reverts commit e3e9628ecf863f433f26bf6107d6a39ced57fe30.

Adds blendmode_mask_* benchs to blacklist for Chromecast.
Otherwise a clean revert of the revert.

Bug: skia:
Change-Id: I9f64ae55804fa4aad97c1785834281039570c56c
Reviewed-on: https://skia-review.googlesource.com/24409
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/whitespace.txt b/whitespace.txt
index f9ffb83..e08b3f9 100644
--- a/whitespace.txt
+++ b/whitespace.txt
@@ -1,7 +1,7 @@
 You can modify this file to create no-op changelists (like this one).
 I LOVE W	H	I	T	E	S	P	A	C	E!
 Python also loves\n\twhitespace.¯\_(ツ)_/¯
-
+ 
 Lithp.
 Use the Forth.
 Life is a mistry.  Everyone must WAKA WAKA WAKA