Merge "Fix ConcurrentModificationException"

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.concurrent.ConcurrentHashMap;

/**

 * Mostly translucent {@link Activity} that shows QuickContact dialog. It loads

        LOADER_SMS_ID,

        LOADER_CALENDAR_ID,

        LOADER_CALL_LOG_ID};

    private Map<Integer, List<ContactInteraction>> mRecentLoaderResults = new HashMap<>();

    /**

     * ConcurrentHashMap constructor params: 4 is initial table size, 0.9f is

     * load factor before resizing, 1 means we only expect a single thread to

     * write to the map so make only a single shard

     */

    private Map<Integer, List<ContactInteraction>> mRecentLoaderResults =

        new ConcurrentHashMap<>(4, 0.9f, 1);

    private static final String FRAGMENT_TAG_SELECT_ACCOUNT = "select_account_fragment";