Update mojo sdk to rev f6c8ec07c01deebc13178d516225fd12695c3dc2

mojo/public/cpp/utility/lib/run_loop.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/public/cpp/utility/run_loop.h"
 
 #include <assert.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 19 matching lines @@
   MojoDeadline deadline;
 };
 
 struct RunLoop::RunState {
   RunState() : should_quit(false) {}
 
   bool should_quit;
 };
 
 RunLoop::RunLoop()
-    : run_state_(NULL), next_handler_id_(0), next_sequence_number_(0) {
+    : run_state_(nullptr), next_handler_id_(0), next_sequence_number_(0) {
   assert(!current());
   current_run_loop.Set(this);
 }
 
 RunLoop::~RunLoop() {
   assert(current() == this);
   NotifyHandlers(MOJO_RESULT_ABORTED, IGNORE_DEADLINE);
-  current_run_loop.Set(NULL);
+  current_run_loop.Set(nullptr);
 }
 
 // static
 void RunLoop::SetUp() {
   current_run_loop.Allocate();
 }
 
 // static
 void RunLoop::TearDown() {
   assert(!current());
@@ skipping 211 matching lines @@
     // std::priority_queue<> puts the least element at the end of the queue. We
     // want the soonest eligible task to be at the head of the queue, so
     // run_times further in the future are considered lesser.
     return run_time > other.run_time;
   }
 
   return sequence_number > other.sequence_number;
 }
 
 }  // namespace mojo