Fix a bunch of tiny near-bugs and bugs that static analysis identified...

base/tracked_objects.cc

 // Copyright (c) 2006-2008 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 "base/tracked_objects.h"
 
 #include <math.h>
 
 #include "base/string_util.h"
 
@@ skipping 63 matching lines @@
 // ThreadData maintains the central data for all births and death.
 
 // static
 ThreadData* ThreadData::first_ = NULL;
 // static
 Lock ThreadData::list_lock_;
 
 // static
 ThreadData::Status ThreadData::status_ = ThreadData::UNINITIALIZED;
 
-ThreadData::ThreadData() : message_loop_(MessageLoop::current()) {}
+ThreadData::ThreadData() : next_(NULL), message_loop_(MessageLoop::current()) {}
 
 // static
 ThreadData* ThreadData::current() {
   if (!tls_index_.initialized())
     return NULL;
 
   ThreadData* registry = static_cast<ThreadData*>(tls_index_.Get());
   if (!registry) {
     // We have to create a new registry for ThreadData.
     bool too_late_to_create = false;
@@ skipping 802 matching lines @@
                   (combined_selectors_ & BIRTH_THREAD) ? "*" :
                     sample.birth().birth_thread()->ThreadName().c_str(),
                   (combined_selectors_ & DEATH_THREAD) ? "*" :
                     sample.DeathThreadName().c_str());
   sample.birth().location().Write(!(combined_selectors_ & BIRTH_FILE),
                                   !(combined_selectors_ & BIRTH_FUNCTION),
                                   output);
 }
 
 }  // namespace tracked_objects