Use lock-free lazy initialization for static histogram references

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
===================================================================
--- tools/valgrind/memcheck/suppressions.txt	(revision 80220)
+++ tools/valgrind/memcheck/suppressions.txt	(working copy)
@@ -877,6 +877,20 @@
    fun:PL_ArenaAllocate
    fun:PORT_ArenaAlloc_Util
 }
+{
+   # Histograms are used on un-joined threads, and can't be deleted atexit.
+   HistogramsViaFactoryGetIncludingStatsLinearCustomBooleanAndBasic
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN4base*Histogram10FactoryGet*
+}
+{
+   # Histograms are used on un-joined threads, and can't be deleted atexit.
+   HistogramsViaFactoryGetIncludingStatsLinearCustomBooleanAndBasic
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN10disk_cache14StatsHistogram24StatsHistogramFactoryGet*
+}
 
 #-----------------------------------------------------------------------
 # 3. Suppressions for real chromium bugs that are not yet fixed.
@@ -4106,7 +4120,7 @@
    fun:_ZN20SelectFileDialogImpl10SelectFileEN16SelectFileDialog4TypeERKSbItN4base20string16_char_traitsESaItEERK8FilePathPKNS0_12FileTypeInfoEiRKSsP10_GtkWindowPv
    fun:_ZN15DownloadManager24OnPathExistenceAvailableEP18DownloadCreateInfo
    fun:_Z16DispatchToMethodI15DownloadManagerMS0_FvP18DownloadCreateInfoES2_EvPT_T0_RK6Tuple1IT1_E
-   fun:_ZN14RunnableMethodI15DownloadManagerMS0_FvP18DownloadCreateInfoE6Tuple1IS2_EE3RunEv
+   fun:_ZN14RunnableMethodI15DownloadManagerMS0_FvP18DownloadCreateInfoE6Tuple1vIS2_EE3RunEv

[rvargas (doing something else), 2011/04/04 19:24:55]

?

[jar (doing other things), 2011/04/04 22:13:09]

Spurious character removed.

THANKS for spotting this!!!!

 }
 {
    bug_77376_b