FunctionRunner - add syntactic sugar to create shared_ptrs

From e1a2d69c5e178675e40aee3f01dadfebf11ca07b Mon Sep 17 00:00:00 2001
From: Mark Rabkin <mrabkin@fb.com>
Date: Fri, 11 Jun 2010 21:44:13 +0000
Subject: [PATCH 03/56] FunctionRunner - add syntactic sugar to create shared_ptrs

Summary:

For FunctionRunner, you used to have to do a really awkward and
verbose looking thing like:

(...)->addTask(boost::shared_ptr<FunctionRunner>(new FunctionRunner(
... args ... )));

Now you can do:

(...)->addTask(FunctionRunner::create( ... args ... ));

Reviewers: simpkins,dreiss

CC: thrift-team@lists.facebook.com

Test Plan: ran concurrency test