GTTF: Enable debugallocation by default (try 3 or so).

Also remove invalid ANNOTATE_LEAKING_OBJECT_PTR
annotation for an object that _does_ get deleted.

This is for now disabled on Windows because of tsan compile issues.

TBR=jar

BUG=30715

Review URL: https://codereview.chromium.org/11826062

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176138 0039d316-1c4b-4281-b951-d872f2087c98

base/allocator/allocator.gyp

@@ -312,10 +312,11 @@
             # Provide a way to force disable debugallocation in Debug builds,
             # e.g. for profiling (it's more rare to profile Debug builds,
             # but people sometimes need to do that).
-            'disable_debugallocation%': 1,
+            'disable_debugallocation%': 0,
           },
           'conditions': [
-            ['disable_debugallocation==0', {
+            # TODO(phajdan.jr): Also enable on Windows.
+            ['disable_debugallocation==0 and OS!="win"', {
               'defines': [
                 # Use debugallocation for Debug builds to catch problems early
                 # and cleanly, http://crbug.com/30715 .

base/metrics/statistics_recorder.cc

@@ -61,7 +61,6 @@ Histogram* StatisticsRecorder::RegisterOrDeleteDuplicate(Histogram* histogram) {
   {
     base::AutoLock auto_lock(*lock_);
     if (histograms_ == NULL) {
-      ANNOTATE_LEAKING_OBJECT_PTR(histogram);  // see crbug.com/79322
       histogram_to_return = histogram;
     } else {
       const string& name = histogram->histogram_name();