Avoid using non-standard property names in test

Avoid using non-standard property names in test

For bug 290055, two use counters was added for how CSSStyleDeclaration
is indexed. One is using non-standard literal names for the CSS
properties, i.e using elt.style['font-size'] instead of
elt.style['fontSize']. The other one is using 'float' instead of
'cssFloat'. Avoid measuring the use counter code in performance tests
by using the standard names instead.

BUG=313864
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=162981

[davve, 2013-12-02 09:51:23]

Part of an effort to make PerformanceTests/CSS/CSSPropertyUpdateValue.html less
affected by added use counters (in https://codereview.chromium.org/47923015/).

Results from my machine:

Before:

avg 10104.702184176858 runs/s
median 10145.397613779789 runs/s
stdev 83.28470225180443 runs/s
min 9902.82849797747 runs/s
max 10224.867189254634 runs/s

After:

avg 10413.723591978847 runs/s
median 10409.98715552023 runs/s
stdev 24.583810132806455 runs/s
min 10370.314973111315 runs/s
max 10486.341927678033 runs/s

[jochen (gone - plz use gerrit), 2013-12-02 10:18:36]

lgtm

[commit-bot: I haz the power, 2013-12-02 10:54:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/davve@opera.com/98733002/1

[commit-bot: I haz the power, 2013-12-02 11:47:12]

Change committed as 162981