Revert "Move core web_view code to extensions." (patchset #6 of https://codereview.chromium.org/4968

Revert "Move core web_view code to extensions." (patchset #6 of https://codereview.chromium.org/496873006/)

This reverts commit 63bf863b12e8c2be593da2318af8ab7c7fbcc8a4.

This breaks the app_shell build for the reasons jamesr describes (src/extensions now depends on generated headers from src/chrome, but there cannot be a dependency from extensions -> chrome).

Hypothetical repro on Linux:
* rm -rf out/* && gclient runhooks && ninja -C out/Debug -j 1000 app_shell

chrome/browser/extensions/api/capture_web_contents_function.h:9:10: fatal error: 'chrome/common/extensions/api/types.h' file not found

Original issue's description:
> Move core web_view code to extensions.
>
>
> BUG=352290
>
> Committed: https://chromium.googlesource.com/chromium/src/+/1218a23163baab9f53d70e9a63030db13ef04d04

TBR=fsamuel@chromium.org,yoz@chromium.org,kalman@chromium.org,sky@chromium.org,dmazzoni@chromium.org,jamesr@chromium.org,hanxi@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=352290
Committed: https://crrev.com/196564d93b1ed77487eb570b2ab74e7adc3af8ef
Cr-Commit-Position: refs/heads/master@{#291808}

[James Cook, 2014-08-26 00:22:17]

jamescook@chromium.org changed reviewers:
+ mukai@chromium.org

[James Cook, 2014-08-26 00:22:31]

The CQ bit was checked by jamescook@chromium.org

[commit-bot: I haz the power, 2014-08-26 00:25:06]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jamescook@chromium.org/502273002/1

[commit-bot: I haz the power, 2014-08-26 00:29:48]

Committed patchset #1 (1) as b83b8a78f292eee43663c4c329cc0bfa59f199e9

[commit-bot: I haz the power, 2014-09-10 02:39:17]

Patchset 1 (id:??) landed as
https://crrev.com/196564d93b1ed77487eb570b2ab74e7adc3af8ef
Cr-Commit-Position: refs/heads/master@{#291808}