BatteryStats: Fix deadlock

                        mUpdateFlags = 0;

                    }

                    updateExternalStats((String)msg.obj, updateFlags);

                    synchronized (this) {

                    // other parts of the system could be calling into us

                    // from mStats in order to report of changes. We must grab the mStats

                    // lock before grabbing our own or we'll end up in a deadlock.

                    synchronized (mStats) {

                        synchronized (this) {

                            final int numUidsToRemove = mUidsToRemove.size();

                            for (int i = 0; i < numUidsToRemove; i++) {

                                mStats.removeIsolatedUidLocked(mUidsToRemove.get(i));