Tests drawImage with self as source image, copy composite operation, and downsized destination rect. Regression test for issue crbug.com/330711

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS imgdata[0] is 0
PASS imgdata[1] is 255
PASS imgdata[2] is 0
PASS imgdata[3] is 255
PASS imgdata[0] is 0
PASS imgdata[1] is 255
PASS imgdata[2] is 0
PASS imgdata[3] is 255
PASS imgdata[0] is 0
PASS imgdata[1] is 0
PASS imgdata[2] is 0
PASS imgdata[3] is 0
PASS imgdata[0] is 0
PASS imgdata[1] is 0
PASS imgdata[2] is 0
PASS imgdata[3] is 0
PASS successfullyParsed is true

TEST COMPLETE