Revert of skia/ext: Early out from analysis when we have more than 1 draw op.

Revert of skia/ext: Early out from analysis when we have more than 1 draw op. (https://codereview.chromium.org/418093003/)

Reason for revert:
This change broke some tests in Blink
Additionally, it renders DevTools shortcuts screen unusable (Open devTools -> F1 -> Shortcuts tab)

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#showExpectations=true&tests=virtual%2Fandroid%2Ffullscreen%2Ffull-screen-fixed-pos-parent.html%2Cvirtual%2Fandroid%2Ffullscreen%2Ffull-screen-iframe-zIndex.html%2Cvirtual%2Fandroid%2Ffullscreen%2Ffull-screen-zIndex.html

Original issue's description:
> skia/ext: Early out from analysis when we have more than 1 draw op.
> 
> This patch puts in a heuristic that earlies out from analysis when
> we have more than one draw op. The intent here is that in most cases,
> if we see more than one draw operation, then analysis is likely not
> to be solid.
> 
> It also removes HasText from analysis canvas, since the only
> remaining use for this was a previous early out heuristic.
> 
> BUG=397198
> R=enne
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285499

TBR=enne@chromium.org,senorblanco@google.com,junov@chromium.org,vmpstr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=397198
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285554

[lushnikov, 2014-07-25 10:15:51]

Created Revert of skia/ext: Early out from analysis when we have more than 1
draw op.

[commit-bot: I haz the power, 2014-07-25 10:18:18]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/lushnikov@chromium.org/416333003/1

[commit-bot: I haz the power, 2014-07-25 10:19:59]

Change committed as 285554