SkPDF: Fix encoding of unichr outside of basic plane

SkPDF: Fix encoding of unichr outside of basic plane

In ToUnicode table, write unicode codepoints as one or two UTF16BE
values, rather than a single hex, as the standard requires.

Factor out uint16 -> big-endian hex code.

SkUtils is now a namespace.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2120533002

Committed: https://skia.googlesource.com/skia/+/a76a10b730ae3fb2abb7c06839ca9c5d14df5ca7

[hal.canary, 2016-07-01 16:32:30]

Description was changed from

==========
SkPDF: Fix encoding of unichr outside of basic plane

In ToUnicode table, write unicode codepoints as one or two UTF16BE
values, rather than a single hex, as the standard requires.

Factor out uint16 -> big-endian hex code.

SkUtils is now a namespace.

BUG=skia:
==========

to

==========
SkPDF: Fix encoding of unichr outside of basic plane

In ToUnicode table, write unicode codepoints as one or two UTF16BE
values, rather than a single hex, as the standard requires.

Factor out uint16 -> big-endian hex code.

SkUtils is now a namespace.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2120533002
==========

[hal.canary, 2016-07-01 16:33:01]

The CQ bit was checked by halcanary@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-07-01 16:33:06]

Dry run: 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, 2016-07-01 16:39:56]

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

[commit-bot: I haz the power, 2016-07-01 16:39:56]

Dry run: Try jobs failed on following builders:
  Build-Ubuntu-GCC-x86_64-Release-Trybot on master.client.skia.compile
(JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu-GCC-x86...)

[hal.canary, 2016-07-01 17:05:48]

The CQ bit was checked by halcanary@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-07-01 17:05:58]

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

[hal.canary, 2016-07-01 17:05:59]

halcanary@google.com changed reviewers:
+ tomhudson@google.com

[hal.canary, 2016-07-01 17:06:00]

PTAL

[hal.canary, 2016-07-01 17:07:45]

See section 9.10.3 of PDF32000-1:2008

[commit-bot: I haz the power, 2016-07-01 17:09:28]

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

[commit-bot: I haz the power, 2016-07-01 17:09:28]

Dry run: This issue passed the CQ dry run.

[tomhudson, 2016-07-07 18:55:54]

lgtm

[hal.canary, 2016-07-07 19:07:30]

The CQ bit was checked by halcanary@google.com

[commit-bot: I haz the power, 2016-07-07 19:07:37]

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, 2016-07-07 19:31:57]

Description was changed from

==========
SkPDF: Fix encoding of unichr outside of basic plane

In ToUnicode table, write unicode codepoints as one or two UTF16BE
values, rather than a single hex, as the standard requires.

Factor out uint16 -> big-endian hex code.

SkUtils is now a namespace.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2120533002
==========

to

==========
SkPDF: Fix encoding of unichr outside of basic plane

In ToUnicode table, write unicode codepoints as one or two UTF16BE
values, rather than a single hex, as the standard requires.

Factor out uint16 -> big-endian hex code.

SkUtils is now a namespace.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2120533002

Committed:
https://skia.googlesource.com/skia/+/a76a10b730ae3fb2abb7c06839ca9c5d14df5ca7
==========

[commit-bot: I haz the power, 2016-07-07 19:31:58]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/a76a10b730ae3fb2abb7c06839ca9c5d14df5ca7