Fix another caret paint invalidation issue

Fix another caret paint invalidation issue

This issue occurred when the caret was blinking to invisible state and
at the same time the caret was moved to another place in the same block.

Change code to ensure m_visualRectInPreviousLayoutBlock is invalidated.

BUG=699044
TBR=wangxianzhu@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2739253002
Cr-Original-Commit-Position: refs/heads/master@{#456275}
Review-Url: https://codereview.chromium.org/2748563002
Cr-Commit-Position: refs/branch-heads/3029@{#135}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/4f3f496493209a314f968d9d5fdd2bc75982bd68

[Xianzhu, 2017-03-12 05:00:49]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2017-03-12 05:00:56]

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, 2017-03-12 05:02:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489294849150500, "parent_rev":
"b4d8c06ee76dbc93598dcfb9be7ff99cd17f0dea", "commit_rev":
"4f3f496493209a314f968d9d5fdd2bc75982bd68"}

[commit-bot: I haz the power, 2017-03-12 05:03:44]

Description was changed from

==========
Fix another caret paint invalidation issue

This issue occurred when the caret was blinking to invisible state and
at the same time the caret was moved to another place in the same block.

Change code to ensure m_visualRectInPreviousLayoutBlock is invalidated.

BUG=699044
TBR=wangxianzhu@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2739253002
Cr-Commit-Position: refs/heads/master@{#456275}
==========

to

==========
Fix another caret paint invalidation issue

This issue occurred when the caret was blinking to invisible state and
at the same time the caret was moved to another place in the same block.

Change code to ensure m_visualRectInPreviousLayoutBlock is invalidated.

BUG=699044
TBR=wangxianzhu@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2739253002
Cr-Original-Commit-Position: refs/heads/master@{#456275}
Review-Url: https://codereview.chromium.org/2748563002
Cr-Commit-Position: refs/branch-heads/3029@{#135}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/4f3f496493209a314f968d9d5fdd...
==========

[commit-bot: I haz the power, 2017-03-12 05:03:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/4f3f496493209a314f968d9d5fdd...