@RequiresPermission(Manifest.permission.DELETE_PACKAGES)
	@Override public String getInstallerPackageName(String packageName) {
		return mBase.getInstallerPackageName(packageName);
	}
Delegation wrapper of {@link PackageManager}

Created by Oasis on 2017/3/27.
engine/src/main/java/com/oasisfeng/island/util/PackageManagerWrapper.java