Revert 109962 - Revert 109903 - Revert 109898 - Set the profiler's thread name at a central place

[I've removed the code, via a separate CL, that DCHECK() earlier today]

This will automatically catch thread names in several of the
child processes we are after, and it also catches the name
for a webkcore thread.

r=rtenneti
Review URL: http://codereview.chromium.org/8558003

TBR=jar@chromium.org
Review URL: http://codereview.chromium.org/8564014

TBR=jar@chromium.org
Review URL: http://codereview.chromium.org/8565030

TBR=jar@chromium.org
Review URL: http://codereview.chromium.org/8555022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109980 0039d316-1c4b-4281-b951-d872f2087c98

base/threading/platform_thread_posix.cc

@@ -13,7 +13,6 @@
 #include "base/safe_strerror_posix.h"
 #include "base/threading/thread_local.h"
 #include "base/threading/thread_restrictions.h"
-#include "base/tracked_objects.h"
 
 #if defined(OS_MACOSX)
 #include <mach/mach.h>
@@ -176,7 +175,6 @@ void PlatformThread::SetName(const char* name) {
   // have to cast away const because ThreadLocalPointer does not support const
   // void*
   current_thread_name.Pointer()->Set(const_cast<char*>(name));
-  tracked_objects::ThreadData::InitializeThreadContext(name);
 
   // http://0pointer.de/blog/projects/name-your-threads.html
 
@@ -212,7 +210,6 @@ void PlatformThread::SetName(const char* name) {
   // have to cast away const because ThreadLocalPointer does not support const
   // void*
   current_thread_name.Pointer()->Set(const_cast<char*>(name));
-  tracked_objects::ThreadData::InitializeThreadContext(name);
 
   // (This should be relatively simple to implement for the BSDs; I
   // just don't have one handy to test the code on.)

base/threading/platform_thread_win.cc

@@ -8,7 +8,6 @@
 #include "base/logging.h"
 #include "base/threading/thread_local.h"
 #include "base/threading/thread_restrictions.h"
-#include "base/tracked_objects.h"
 
 #include "base/win/windows_version.h"
 
@@ -101,7 +100,6 @@ void PlatformThread::Sleep(int duration_ms) {
 // static
 void PlatformThread::SetName(const char* name) {
   current_thread_name.Set(const_cast<char*>(name));
-  tracked_objects::ThreadData::InitializeThreadContext(name);
 
   // The debugger needs to be around to catch the name in the exception.  If
   // there isn't a debugger, we are just needlessly throwing an exception.

base/threading/thread.cc

@@ -8,6 +8,7 @@
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread_local.h"
 #include "base/synchronization/waitable_event.h"
+#include "base/tracked_objects.h"
 
 namespace base {
 
@@ -151,6 +152,7 @@ void Thread::ThreadMain() {
     ANNOTATE_THREAD_NAME(name_.c_str());  // Tell the name to race detector.
     message_loop.set_thread_name(name_);
     message_loop_ = &message_loop;
+    tracked_objects::ThreadData::InitializeThreadContext(name_);
 
     // Let the thread do extra initialization.
     // Let's do this before signaling we are started.

content/browser/browser_main_loop.cc

@@ -11,6 +11,7 @@
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/threading/thread_restrictions.h"
+#include "base/tracked_objects.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/trace_controller.h"
 #include "content/common/hi_res_timer_manager.h"
@@ -296,6 +297,7 @@ void BrowserMainLoop::InitializeMainThread() {
   const char* kThreadName = "CrBrowserMain";
   base::PlatformThread::SetName(kThreadName);
   main_message_loop_->set_thread_name(kThreadName);
+  tracked_objects::ThreadData::InitializeThreadContext(kThreadName);
 
   // Register the main thread by instantiating it, but don't call any methods.
   main_thread_.reset(new BrowserThreadImpl(BrowserThread::UI,