Revert of cc: Build Image to Region map during image meta-data generation.

Revert of cc: Build Image to Region map during image meta-data generation. (patchset #6 id:100001 of https://codereview.chromium.org/2496283004/ )

Reason for revert:
Computing these image regions adds significant time to the critical path on image heavy content.  Let's re-land after addressing the performance.

BUG=670926
Original issue's description:
> cc: Build Image to Region map during image meta-data generation.
>
> During the discardable image meta-data generation phase, we build an
> Rtree to pull the set of images given a rect. This change adds a
> reverse lookup map to be built at the same time for querying the region
> for an image in a DisplayItemList.
>
> BUG=665266
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
>
> Committed: https://crrev.com/fc85c1aa0881047c4410cbedc1e4543bcf789a1f
> Cr-Commit-Position: refs/heads/master@{#432841}

TBR=vmpstr@chromium.org,khushalsagar@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=665266
Committed: https://crrev.com/654417a5699ed0965a94977350266bf5ce206daa
Cr-Commit-Position: refs/heads/master@{#436174}

[vmiura, 2016-12-03 04:07:08]

The CQ bit was checked by vmiura@chromium.org

[vmiura, 2016-12-03 04:07:08]

Created Revert of cc: Build Image to Region map during image meta-data
generation.

[commit-bot: I haz the power, 2016-12-03 04:07:24]

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, 2016-12-03 21:10:04]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480738028026640, "parent_rev":
"0605578c2bd52fe1d207e2ed92fab273a9ebb99c", "commit_rev":
"db2e86170b026975046957b684d443d6accc31fb"}

[commit-bot: I haz the power, 2016-12-03 21:10:26]

Description was changed from

==========
Revert of cc: Build Image to Region map during image meta-data generation.
(patchset #6 id:100001 of https://codereview.chromium.org/2496283004/ )

Reason for revert:
Computing these image regions adds significant time to the critical path on
image heavy content.  Let's re-land after addressing the performance.

BUG=670926

Original issue's description:
> cc: Build Image to Region map during image meta-data generation.
> 
> During the discardable image meta-data generation phase, we build an
> Rtree to pull the set of images given a rect. This change adds a
> reverse lookup map to be built at the same time for querying the region
> for an image in a DisplayItemList.
> 
> BUG=665266
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
> 
> Committed: https://crrev.com/fc85c1aa0881047c4410cbedc1e4543bcf789a1f
> Cr-Commit-Position: refs/heads/master@{#432841}

TBR=vmpstr@chromium.org,khushalsagar@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=665266
==========

to

==========
Revert of cc: Build Image to Region map during image meta-data generation.
(patchset #6 id:100001 of https://codereview.chromium.org/2496283004/ )

Reason for revert:
Computing these image regions adds significant time to the critical path on
image heavy content.  Let's re-land after addressing the performance.

BUG=670926

Original issue's description:
> cc: Build Image to Region map during image meta-data generation.
> 
> During the discardable image meta-data generation phase, we build an
> Rtree to pull the set of images given a rect. This change adds a
> reverse lookup map to be built at the same time for querying the region
> for an image in a DisplayItemList.
> 
> BUG=665266
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
> 
> Committed: https://crrev.com/fc85c1aa0881047c4410cbedc1e4543bcf789a1f
> Cr-Commit-Position: refs/heads/master@{#432841}

TBR=vmpstr@chromium.org,khushalsagar@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=665266
==========

[commit-bot: I haz the power, 2016-12-03 21:10:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-03 21:12:05]

Description was changed from

==========
Revert of cc: Build Image to Region map during image meta-data generation.
(patchset #6 id:100001 of https://codereview.chromium.org/2496283004/ )

Reason for revert:
Computing these image regions adds significant time to the critical path on
image heavy content.  Let's re-land after addressing the performance.

BUG=670926

Original issue's description:
> cc: Build Image to Region map during image meta-data generation.
> 
> During the discardable image meta-data generation phase, we build an
> Rtree to pull the set of images given a rect. This change adds a
> reverse lookup map to be built at the same time for querying the region
> for an image in a DisplayItemList.
> 
> BUG=665266
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
> 
> Committed: https://crrev.com/fc85c1aa0881047c4410cbedc1e4543bcf789a1f
> Cr-Commit-Position: refs/heads/master@{#432841}

TBR=vmpstr@chromium.org,khushalsagar@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=665266
==========

to

==========
Revert of cc: Build Image to Region map during image meta-data generation.
(patchset #6 id:100001 of https://codereview.chromium.org/2496283004/ )

Reason for revert:
Computing these image regions adds significant time to the critical path on
image heavy content.  Let's re-land after addressing the performance.

BUG=670926

Original issue's description:
> cc: Build Image to Region map during image meta-data generation.
>
> During the discardable image meta-data generation phase, we build an
> Rtree to pull the set of images given a rect. This change adds a
> reverse lookup map to be built at the same time for querying the region
> for an image in a DisplayItemList.
>
> BUG=665266
> CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
>
> Committed: https://crrev.com/fc85c1aa0881047c4410cbedc1e4543bcf789a1f
> Cr-Commit-Position: refs/heads/master@{#432841}

TBR=vmpstr@chromium.org,khushalsagar@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=665266

Committed: https://crrev.com/654417a5699ed0965a94977350266bf5ce206daa
Cr-Commit-Position: refs/heads/master@{#436174}
==========

[commit-bot: I haz the power, 2016-12-03 21:12:06]

Patchset 1 (id:??) landed as
https://crrev.com/654417a5699ed0965a94977350266bf5ce206daa
Cr-Commit-Position: refs/heads/master@{#436174}