public Builder setMaxCacheSizeOnLowDiskSpace(long maxCacheSizeOnLowDiskSpace) {
      mMaxCacheSizeOnLowDiskSpace = maxCacheSizeOnLowDiskSpace;
      return this;
    }
This is the maximum size of the cache that is used when the device is low on disk space.

<p>See {@link DiskTrimmable#trimToMinimum()}.
imagepipeline-base/src/main/java/com/facebook/cache/disk/DiskCacheConfig.java