Add more input types, fix lowercase nodeName, support shift-backspace

Add more input types, fix lowercase nodeName, support shift-backspace

Add the date, datetime, datetime-local, month, time, url, and week input types.
Force node names to upper case and node types to lower case before comparison.
Support shift-backspace to go forward, and ignore other modified-backspace
keypresses (i.e. alt-, ctrl-, and meta-backspace).

BUG=638645, 637983, 638469
R=ojan@chromium.org

Committed: https://chromium.googlesource.com/chromium/extensions-by-google/05efa01c40b34bf3d1aa32662663caee1155773d

[Pam (message me for reviews), 2016-08-18 21:45:11]

Add note about reloading tabs

[ojan, 2016-08-19 21:30:06]

lgtm

[Pam (message me for reviews), 2016-08-19 21:36:01]

Description was changed from

==========
Add more input types, fix lowercase nodeName, support shift-backspace

Add the date, datetime, datetime-local, month, time, url, and week input types.
Force node names to upper case and node types to lower case before comparison.
Support shift-backspace to go forward, and ignore other modified-backspace
keypresses (i.e. alt-, ctrl-, and meta-backspace).

BUG=638645, 637983, 638469
R=ojan@chromium.org
==========

to

==========
Add more input types, fix lowercase nodeName, support shift-backspace

Add the date, datetime, datetime-local, month, time, url, and week input types.
Force node names to upper case and node types to lower case before comparison.
Support shift-backspace to go forward, and ignore other modified-backspace
keypresses (i.e. alt-, ctrl-, and meta-backspace).

BUG=638645, 637983, 638469
R=ojan@chromium.org

Committed:
https://chromium.googlesource.com/chromium/extensions-by-google/05efa01c40b34...
==========

[Pam (message me for reviews), 2016-08-19 21:36:02]

Committed patchset #3 (id:40001) manually as
05efa01c40b34bf3d1aa32662663caee1155773d (presubmit successful).