Merge "Set the pid of ProcessProfileRecord for system_server" into sc-dev

                        0,

                        new HostingRecord("system"));

                app.setPersistent(true);

                app.mPid = MY_PID;

                app.getWindowProcessController().setPid(MY_PID);

                app.setPid(MY_PID);

                app.mState.setMaxAdj(ProcessList.SYSTEM_ADJ);

                app.makeActive(mSystemThread.getApplicationThread(), mProcessStats);

                addPidLocked(app);