Add new OWNERS and remove drover.properties.

The drover.properties file is no longer useful after
migrating the repo to Git.

BUG=libyuv:568
R=mflodman@chromium.org

Review URL: https://codereview.chromium.org/1696173002 .

OWNERS

-fbarchard@chromium.org
-mflodman@chromium.org
+fbarchard@chromium.org
+magjed@chromium.org
+torbjorng@chromium.org
+
+per-file *.gyp=kjellander@chromium.org
+per-file *.gn=kjellander@chromium.org
+per-file .gitignore=*
+per-file AUTHORS=*
+per-file DEPS=*
+per-file PRESUBMIT.py=kjellander@chromium.org
+per-file gyp_libyuv.py=kjellander@chromium.org
+per-file setup_links.py=*
+per-file sync_chromium.py=kjellander@chromium.org

drover.properties

-BASE_URL = "https://libyuv.googlecode.com/svn"
-TRUNK_URL = BASE_URL + "/trunk"
-BRANCH_URL = BASE_URL + "/branches/$branch"
-SKIP_CHECK_WORKING = True
-FILE_PATTERN = file_pattern_ =  r"[ ]+([MADUC])[ ]+/((?:trunk|branches/.*?)(.*)/(.*))"
-PROMPT_FOR_AUTHOR = False

tools/OWNERS

+kjellander@chromium.org