Add support for allowing an embedder to get the V8 profile timer event logs.

src/log.cc

Index: src/log.cc
diff --git a/src/log.cc b/src/log.cc
index 1c332d1736318fdccd8f8a313545019df7e6469a..d4431dcd233944a848a15ad70d0f861cd17699df 100644
--- a/src/log.cc
+++ b/src/log.cc
@@ -1125,7 +1125,13 @@ void Logger::LeaveExternal(Isolate* isolate) {
 
 
 void Logger::TimerEventScope::LogTimerEvent(StartEnd se) {
-  LOG(isolate_, TimerEvent(se, name_));
+  if (FLAG_log_internal_timer_events)

[Yang, 2014/03/05 08:18:31]

We always use brackets if an if-clause contains a linebreak. Either use brackets
or don't linebreak please.

[fmeawad, 2014/03/06 00:24:46]

Fixed in Patch 5, removed in Patch 6.

+    LOG(isolate_, TimerEvent(se, name_));
+  if (se == START) {
+    LOG_EVENT_BEGIN(isolate_, name_);
+  } else {
+    LOG_EVENT_END(isolate_, name_);
+  }
 }