Remove PaintImage trace from KnownToBeOpaque in StyleFetchedImage

Remove PaintImage trace from KnownToBeOpaque in StyleFetchedImage

Remove obsolete PaintImage trace from StyleFetchedImage::KnownToBeOpaque
and StyleFetchedImageSet::KnownToBeOpaque. Trace was originally added in
late 2014 (in r186030) to the ImageResource::currentFrameKnownToBeOpaque
method as it, at the time, caused a forced decode for the image. That is
no longer the case yet the trace call has stubbornly survived unchanged.

R=pdr@chromium.org

Review-Url: https://codereview.chromium.org/2880573003
Cr-Commit-Position: refs/heads/master@{#471089}
Committed: https://chromium.googlesource.com/chromium/src/+/df9f27f551ca5f0686aea37ed459a03b35a7c9b5

[eae, 2017-05-11 18:31:47]

The CQ bit was checked by eae@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-05-11 18:33:22]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[pdr., 2017-05-11 19:50:48]

On 2017/05/11 at 18:31:44, eae wrote:
> 

LGTM

[eae, 2017-05-11 20:47:51]

The CQ bit was unchecked by eae@chromium.org

[eae, 2017-05-11 20:47:54]

The CQ bit was checked by eae@chromium.org

[commit-bot: I haz the power, 2017-05-11 20:48:06]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-11 22:26:18]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494535674556110, "parent_rev":
"5d0e8f61409ed3ff204140111b8cb70be3a3d473", "commit_rev":
"df9f27f551ca5f0686aea37ed459a03b35a7c9b5"}

[commit-bot: I haz the power, 2017-05-11 22:26:27]

Description was changed from

==========
Remove PaintImage trace from KnownToBeOpaque in StyleFetchedImage

Remove obsolete PaintImage trace from StyleFetchedImage::KnownToBeOpaque
and StyleFetchedImageSet::KnownToBeOpaque. Trace was originally added in
late 2014 (in r186030) to the ImageResource::currentFrameKnownToBeOpaque
method as it, at the time, caused a forced decode for the image. That is
no longer the case yet the trace call has stubbornly survived unchanged.

R=pdr@chromium.org
==========

to

==========
Remove PaintImage trace from KnownToBeOpaque in StyleFetchedImage

Remove obsolete PaintImage trace from StyleFetchedImage::KnownToBeOpaque
and StyleFetchedImageSet::KnownToBeOpaque. Trace was originally added in
late 2014 (in r186030) to the ImageResource::currentFrameKnownToBeOpaque
method as it, at the time, caused a forced decode for the image. That is
no longer the case yet the trace call has stubbornly survived unchanged.

R=pdr@chromium.org

Review-Url: https://codereview.chromium.org/2880573003
Cr-Commit-Position: refs/heads/master@{#471089}
Committed:
https://chromium.googlesource.com/chromium/src/+/df9f27f551ca5f0686aea37ed459...
==========

[commit-bot: I haz the power, 2017-05-11 22:26:28]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/df9f27f551ca5f0686aea37ed459...