indexed_db_leveldb_coding: Remove three unused functions.

jsbell says: "It's safe to remove them.  The generic version of Compare<T>(a,
b) does a full decode then calls a_decoded.Compare(b_decoded). In these three
cases (ExistsEntryKey, ObjectStoreDataKey, IndexDataKey) there is no
T::Compare(T&) - the compare function has extra arguments which capture the
additional behavior. If someone reintroduces the call the template won't match
and it would fail to compile."

BUG=315884
R=jsbell@chromium.org

Review URL: https://codereview.chromium.org/66033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233742 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233742
nfc: Add D-Bus client for NFC Record interface.

Implemented a D-Bus client for the org.neard.Record interface.
This CL also improves the way the object proxies are managed, so that
objects' life-time is managed correctly and the Added/Removed notifications
are properly sent to observers while supporting multiple adapters, tags, and
devices.

BUG=304979
TEST=1. chromeos_unittests
     2. Tested on an SCL3711 USB NFC adapter that records properties
        update properly, by looking at /var/log/chrome/chrome while
        running Chrome with --vmodule=*nfc*.

Review URL: https://codereview.chromium.org/48713010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233743 0039d316-1c4b-4281-b951-d872f2087c98
Sticky keys modifies mouse click and scroll events in addition to key events.

Also refactor StickyKeys to be an EventHandler itself.

BUG=308659, 308662
TEST=enable existing interactive_ui_test case and manual testing

Review URL: https://codereview.chromium.org/60013011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233744 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233744