Fixed video muting test on Android, added logging.

The video muting test didn't force iSAC correctly. Also added some
lightweight log statements to make it easier to see how far we get when
the test fails.

BUG=332765
TBR=wjia@chromium.org

Review URL: https://codereview.chromium.org/131613005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243904 0039d316-1c4b-4281-b951-d872f2087c98
Revert 243896 "Android: moves jni_generator samples to use long ..."

> Android: moves jni_generator samples to use long for JNI.
> 
> BUG=317523
> 
> Review URL: https://codereview.chromium.org/131543003

TBR=bulach@chromium.org

Review URL: https://codereview.chromium.org/131913002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243905 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243904
SVN changes up to revision 243905