html_diff: Show context lines at the beginning/end of a file correctly.

html_diff: Show context lines at the beginning/end of a file correctly.

If insertion happened at the beginning/end of a file, html_diff
incorrectly skipped to show context lines.  This CL fixes it.

BUG=691883
Review-Url: https://codereview.chromium.org/2699083002
Cr-Commit-Position: refs/heads/master@{#451415}
Committed: https://chromium.googlesource.com/chromium/src/+/d69da860fbe6e4b6a0ad3f4a7a79f816a2adfd75

[tkent, 2017-02-17 06:54:04]

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

[commit-bot: I haz the power, 2017-02-17 06:54:45]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[tkent, 2017-02-17 07:28:20]

Description was changed from

==========
html_diff: Show context lines at the beginning/end of a file correctly.

If deletion/insertion happened at the beginning/end of a file, html_diff
incorrectly skipped to show context lines.  This CL fixes it.

BUG=691883
==========

to

==========
html_diff: Show context lines at the beginning/end of a file correctly.

If insertion happened at the beginning/end of a file, html_diff
incorrectly skipped to show context lines.  This CL fixes it.

BUG=691883
==========

[commit-bot: I haz the power, 2017-02-17 07:53:10]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-17 07:53:11]

Dry run: This issue passed the CQ dry run.

[tkent, 2017-02-17 07:55:59]

tkent@chromium.org changed reviewers:
+ qyearsley@chromium.org

[tkent, 2017-02-17 07:56:00]

qyearsley@, would you review this please?

[qyearsley, 2017-02-17 23:53:39]

The CQ bit was checked by qyearsley@chromium.org

[qyearsley, 2017-02-17 23:53:40]

lgtm

[commit-bot: I haz the power, 2017-02-17 23:54:28]

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, 2017-02-18 01:58:32]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-18 01:58:36]

Try jobs failed on following builders:
  chromium_presubmit on master.tryserver.chromium.linux (JOB_TIMED_OUT, no build
URL)

[tkent, 2017-02-18 02:10:37]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2017-02-18 02:12:48]

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, 2017-02-18 04:04:45]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487383837564910, "parent_rev":
"7ec1feb1ea6cc6f27646cb387f1950f1c6462e6f", "commit_rev":
"926cf88962883973caf5fea94905f0ba19676807"}

[commit-bot: I haz the power, 2017-02-18 04:08:40]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487383837564910, "parent_rev":
"3698566a04a253270d6341f0d6bf7079697c3ddd", "commit_rev":
"d69da860fbe6e4b6a0ad3f4a7a79f816a2adfd75"}

[commit-bot: I haz the power, 2017-02-18 04:09:54]

Description was changed from

==========
html_diff: Show context lines at the beginning/end of a file correctly.

If insertion happened at the beginning/end of a file, html_diff
incorrectly skipped to show context lines.  This CL fixes it.

BUG=691883
==========

to

==========
html_diff: Show context lines at the beginning/end of a file correctly.

If insertion happened at the beginning/end of a file, html_diff
incorrectly skipped to show context lines.  This CL fixes it.

BUG=691883

Review-Url: https://codereview.chromium.org/2699083002
Cr-Commit-Position: refs/heads/master@{#451415}
Committed:
https://chromium.googlesource.com/chromium/src/+/d69da860fbe6e4b6a0ad3f4a7a79...
==========

[commit-bot: I haz the power, 2017-02-18 04:09:55]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/d69da860fbe6e4b6a0ad3f4a7a79...