Android: remove check for JNI method id.

Following r162186, the JNI method ids are lazily initialized.
Also, remove obsolete TODO, as the JNI is now initialized for
unittests.

BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/11198029

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@163117 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed