Make our raw/ tests actually check the paint output.

sky/tests/raw/render_flex-expected.txt

Index: sky/tests/raw/render_flex-expected.txt
diff --git a/sky/tests/raw/render_flex-expected.txt b/sky/tests/raw/render_flex-expected.txt
index 64f9b21baf7ef817f56bb3b19aade809f643b23d..49920089f28e7709574d763eeb36344d2fbd5b62 100644
--- a/sky/tests/raw/render_flex-expected.txt
+++ b/sky/tests/raw/render_flex-expected.txt
@@ -1,4 +1,38 @@
 CONSOLE: unittest-suite-wait-for-done
+CONSOLE: TestView enabled
+CONSOLE: 
+PAINT FOR FRAME #1 ----------------------------------------------
+1 | TestDisplayList() constructor: 800.0 x 600.0
+1 | paintChild at 0.0,0.0
+1 |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  | drawRect(0.0:0.0:600.0:800.0, Paint(4278190080))
+1 |  | paintChild at 0.0,0.0
+1 |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  | drawRect(0.0:0.0:82.5:800.0, Paint(4294967040))
+1 |  | paintChild at 350.0,82.5
+1 |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  | drawRect(0.0:0.0:100.0:100.0, Paint(1996554239))
+1 |  | paintChild at 0.0,182.5
+1 |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  | paintChild at 10.0,10.0
+1 |  |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  |  | drawRect(0.0:0.0:150.0:780.0, Paint(4294967295))
+1 |  |  |  | paintChild at 0.0,0.0
+1 |  |  |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  |  |  | drawRect(0.0:0.0:50.0:780.0, Paint(4278255360))
+1 |  |  |  | paintChild at 0.0,50.0
+1 |  |  |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  |  |  | drawRect(0.0:0.0:100.0:780.0, Paint(1996554239))
+1 |  | paintChild at 0.0,352.5
+1 |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  | drawRect(0.0:0.0:247.5:800.0, Paint(4281545523))
+1 |  |  | paintChild at 0.0,0.0
+1 |  |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  |  | drawRect(0.0:0.0:247.5:266.6666564941406, Paint(2013200639))
+1 |  |  | paintChild at 266.6666666666667,0.0
+1 |  |  |  | TestDisplayList() constructor: 800.0 x 600.0
+1 |  |  |  | drawRect(0.0:0.0:247.5:533.3333129882812, Paint(4278190335))
+------------------------------------------------------------------------
 CONSOLE: PASS: should flex
 CONSOLE: 
 CONSOLE: All 1 tests passed.