Update task tracking to not depend on message_loop_ singleton

I also did a bunch of cleanup, and transitioned to tracking
the duration of a run, rather than the time from posting
(construction of a task) to completion of the run.  It is
less interesting for now to track queueing delay, and we
need a focus on task execution time.  I left in the hook
(API) with the expectation that I'll be extending the
tracked_objects code to include this as well.

I also landed changes to run in Linux/Mac.  The fact that
I've punted on shutdown made this landing easy (all
code support was previously lost during migration to
some flavor of bind support).

r=willchan,jam,viettrungluu,ajwong
BUG=62728
Review URL: http://codereview.chromium.org/8233037

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@105694 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 3 deletions

diff --git a/content/browser/browser_main.cc b/content/browser/browser_main.cc
index 75e80c3..b0c9c19 100644
--- a/content/browser/browser_main.cc
+++ b/content/browser/browser_main.cc
@@ -12,6 +12,7 @@
 #include "base/metrics/histogram.h"
 #include "base/system_monitor/system_monitor.h"
 #include "base/threading/thread_restrictions.h"
+#include "base/tracked_objects.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/content_browser_client.h"
 #include "content/common/hi_res_timer_manager.h"
@@ -241,12 +242,11 @@ void BrowserMainParts::MainMessageLoopStart() {
 
   main_message_loop_.reset(new MessageLoop(MessageLoop::TYPE_UI));
 
-  // TODO(viettrungluu): should these really go before setting the thread name?
+  InitializeMainThread();
+
   system_monitor_.reset(new base::SystemMonitor);
   hi_res_timer_manager_.reset(new HighResolutionTimerManager);
 
-  InitializeMainThread();
-
   network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
 
   PostMainMessageLoopStart();
@@ -274,6 +274,10 @@ void BrowserMainParts::InitializeMainThread() {
   base::PlatformThread::SetName(kThreadName);
   main_message_loop().set_thread_name(kThreadName);
 
+#if defined(TRACK_ALL_TASK_OBJECTS)
+  tracked_objects::ThreadData::InitializeThreadContext(kThreadName);
+#endif  // TRACK_ALL_TASK_OBJECTS
+
   // Register the main thread by instantiating it, but don't call any methods.
   main_thread_.reset(new BrowserThread(BrowserThread::UI,
                                        MessageLoop::current()));