Inflate rect instead of m_dirtyRect in HTMLCanvasElement::didDraw

Inflate rect instead of m_dirtyRect in HTMLCanvasElement::didDraw

This is a clean up CL for https://codereview.chromium.org/1994613002/,
we should not inflate m_dirtyRect because it will accumulate that inflation.

BUG=609820
Committed: https://crrev.com/c3d88062790e63b468cbe1b0a672d244baa33f48
Cr-Commit-Position: refs/heads/master@{#394545}

[xidachen, 2016-05-18 19:52:26]

xidachen@chromium.org changed reviewers:
+ junov@chromium.org

[xidachen, 2016-05-18 19:52:27]

PTAL

[Justin Novosad, 2016-05-18 19:53:55]

Yes, that's better.  lgtm

[xidachen, 2016-05-18 19:55:01]

The CQ bit was checked by xidachen@chromium.org

[commit-bot: I haz the power, 2016-05-18 19:55:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1991563003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1991563003/1

[commit-bot: I haz the power, 2016-05-18 21:07:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-18 21:09:07]

Description was changed from

==========
Inflate rect instead of m_dirtyRect in HTMLCanvasElement::didDraw

This is a clean up CL for https://codereview.chromium.org/1994613002/,
we should not inflate m_dirtyRect because it will accumulate that inflation.

BUG=609820
==========

to

==========
Inflate rect instead of m_dirtyRect in HTMLCanvasElement::didDraw

This is a clean up CL for https://codereview.chromium.org/1994613002/,
we should not inflate m_dirtyRect because it will accumulate that inflation.

BUG=609820

Committed: https://crrev.com/c3d88062790e63b468cbe1b0a672d244baa33f48
Cr-Commit-Position: refs/heads/master@{#394545}
==========

[commit-bot: I haz the power, 2016-05-18 21:09:08]

Patchset 1 (id:??) landed as
https://crrev.com/c3d88062790e63b468cbe1b0a672d244baa33f48
Cr-Commit-Position: refs/heads/master@{#394545}