Update the juggler sample with some optimizations and cleanup.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=18781

[petersont, 2009-06-18 22:18:52]

What I like about you is that not only did you fix the weirdness, but you put in
a comment explaining the weirdness.  Don't forget to check in a new screenshot
for the selenium test.

http://codereview.chromium.org/132023/diff/3/1002
File samples/juggler.html (right):

http://codereview.chromium.org/132023/diff/3/1002#newcode298
Line 298: // between for pixels right on the edge, for antialiasing.
Nice.

http://codereview.chromium.org/132023/diff/3/1002#newcode351
Line 351: return // This cast implicitly casts scalar value X to color (X, X, X,
X)
I would move the comment "This cast...X)" to the line above the return.  Also,
what happens if you actually make the cast explicit, surrounding the return
value with float4(...), seems slightly more readable, and if I were a compiler,
I would compile it the same.

[petersont, 2009-06-18 22:41:31]

LGTM