Remove an unnecessary leak annotation.

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 953 matching lines @@
 }
 {
    # Histograms are used on un-joined threads, and can't be deleted atexit.
    Histograms via FactoryGet including Stats for disk_cache
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN10disk_cache14StatsHistogram10FactoryGet*
 }
 {
+   Intentional leak for Histogram (in StatisticsRecorderTest, NotInitialized).
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN4base42StatisticsRecorderTest_NotInitialized_Test8TestBodyEv
+}
+{
+   Intentional leak for list<const BucketRanges*>(in StatisticsRecorderTest, RegisterBucketRanges).
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN4base18StatisticsRecorder31RegisterOrDeleteDuplicateRangesEPKNS_12BucketRangesE
+   fun:_ZN4base48StatisticsRecorderTest_RegisterBucketRanges_Test8TestBodyEv
+}
+{
    # See http://code.google.com/p/chromium/issues/detail?id=70062#c8
    bug_70062 (Intentional)
    Memcheck:Leak
    ...
    fun:InitSessionCacheLocks
    fun:initSessionCacheLocksLazily
    ...
    fun:ssl_InitSessionCacheLocks
 }
 {
@@ skipping 4858 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }