Merge "Fix deadlock on CompatConfig.mChanges" am: eaf3fd59

import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

     * Rechecks all the existing overrides for a package.

     */

    void recheckOverrides(String packageName) {

        // Local cache of compat changes. Holding a lock on mChanges for the whole duration of the

        // method will cause a deadlock.

        List<CompatChange> changes;

        synchronized (mChanges) {

            boolean shouldInvalidateCache = false;

            changes = new ArrayList<>(mChanges.size());

            for (int idx = 0; idx < mChanges.size(); ++idx) {

                CompatChange c = mChanges.valueAt(idx);

                changes.add(mChanges.valueAt(idx));

            }

        }

        boolean shouldInvalidateCache = false;

        for (CompatChange c: changes) {

            OverrideAllowedState allowedState =

                    mOverrideValidator.getOverrideAllowedState(c.getId(), packageName);

            shouldInvalidateCache |= c.recheckOverride(packageName, allowedState, mContext);

            invalidateCache();

        }

    }

    }

    void registerContentObserver() {

        mOverrideValidator.registerContentObserver();