Remove unused Utf8ToUtf16CharacterStream.

Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947
Committed: https://crrev.com/e954e954007b0ebfe2665df64cd1976a68c3f2b9
Cr-Commit-Position: refs/heads/master@{#38824}

[vogelheim, 2016-08-18 14:36:50]

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

[commit-bot: I haz the power, 2016-08-18 14:37:03]

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

[vogelheim, 2016-08-18 14:53:44]

Description was changed from

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

-200 LOC :)

BUG=
==========

to

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947
==========

[commit-bot: I haz the power, 2016-08-18 15:28:36]

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

[commit-bot: I haz the power, 2016-08-18 15:28:36]

Dry run: This issue passed the CQ dry run.

[vogelheim, 2016-08-18 15:58:23]

vogelheim@chromium.org changed reviewers:
+ marja@chromium.org

[marja, 2016-08-19 08:38:43]

lgtm

[vogelheim, 2016-08-23 13:04:27]

The CQ bit was checked by vogelheim@chromium.org

[commit-bot: I haz the power, 2016-08-23 13:04:33]

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, 2016-08-23 13:30:28]

Description was changed from

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947
==========

to

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947
==========

[commit-bot: I haz the power, 2016-08-23 13:30:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-23 13:30:47]

Description was changed from

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947
==========

to

==========
Remove unused Utf8ToUtf16CharacterStream.

- The static method CopyChars was actually used and has been extracted.
- It was used in tests, where it's been replaced w/ ExternalOneByteString...
- Only one test actually relied on Utf8 handling (as opposed to ASCII only),
  and that was the test testing Utf8ToUtf16CharacterStream itself.

+66 -277 LOC :)

BUG=v8:4947

Committed: https://crrev.com/e954e954007b0ebfe2665df64cd1976a68c3f2b9
Cr-Commit-Position: refs/heads/master@{#38824}
==========

[commit-bot: I haz the power, 2016-08-23 13:30:48]

Patchset 1 (id:??) landed as
https://crrev.com/e954e954007b0ebfe2665df64cd1976a68c3f2b9
Cr-Commit-Position: refs/heads/master@{#38824}