Use factory to create histograms, and refcounts to track lifetimes...

chrome/browser/diagnostics/sqlite_diagnostics.cc

Index: chrome/browser/diagnostics/sqlite_diagnostics.cc
===================================================================
--- chrome/browser/diagnostics/sqlite_diagnostics.cc	(revision 33932)
+++ chrome/browser/diagnostics/sqlite_diagnostics.cc	(working copy)
@@ -43,9 +43,11 @@
   static void RecordErrorInHistogram(int error) {
     // The histogram values from sqlite result codes go currently from 1 to
     // 26 currently but 50 gives them room to grow.
-    static LinearHistogram histogram(kHistogramNames[unique], 1, 50, 51);
-    histogram.SetFlags(kUmaTargetedHistogramFlag);
-    histogram.Add(error);
+    static scoped_refptr<Histogram> histogram =
+        LinearHistogram::LinearHistogramFactoryGet(kHistogramNames[unique], 1,
+                                                   50, 51);
+    histogram->SetFlags(kUmaTargetedHistogramFlag);
+    histogram->Add(error);
   }
 };