Move wm/core to wm namespace.

Also sets up new targets for wm_core, wm_core_unittests, etc.

R=sky@chromium.org
TBR=sky@chromium.org
BUG=

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=256680

Review URL: https://codereview.chromium.org/196063002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256839 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256839
android: Make javac rules depend on java files too.

Fixes regression from r256667, which made javac only rerun when the list of
java files changed, not when a java file itself was touched :-/

BUG=177552
TEST=touch java file, rebuild. apk gets updated.
R=miguelg@chromium.org

Review URL: https://codereview.chromium.org/196423008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256842 0039d316-1c4b-4281-b951-d872f2087c98
fix

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256843 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256843