Tombstone in com.android.browser at /system/libhwui.so

remove the Subwindow container first.

Change-Id: Ie561a1640661ab59213facc5afc3ea98fa96846d
Author: Yijun Zhu <yijunx.zhu@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 42566
Browser: fix 2 cursor leaks and reduce observer presence

Change-Id: I78be3deb6f75b6e568ecd3bc4c22e783aa211ea5
if browser is destroyed on pause we leave an orphaned wakelock

Change-Id: I4082b5d14284db7edb72ad61ed9f7a0fbea409e3
Merge "Tombstone in com.android.browser at /system/libhwui.so" into jb43