Keep ranges_ptr variable for debug, not just the data it points to.

base/metrics/histogram_snapshot_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/metrics/histogram_snapshot_manager.h"
 
 #include <memory>
 
 #include "base/debug/alias.h"
 #include "base/metrics/histogram_flattener.h"
@@ skipping 44 matching lines @@
     HistogramBase::Sample* ranges_ptr = &ranges_copy[0];
     uint32_t ranges_checksum = ranges->checksum();
     uint32_t ranges_calc_checksum = ranges->CalculateChecksum();
     const char* histogram_name = histogram->histogram_name().c_str();
     int32_t flags = histogram->flags();
     // The checksum should have caught this, so crash separately if it didn't.
     CHECK_NE(0U, HistogramBase::RANGE_CHECKSUM_ERROR & corruption);
     CHECK(false);  // Crash for the bucket order corruption.
     // Ensure that compiler keeps around pointers to |histogram| and its
     // internal |bucket_ranges_| for any minidumps.
-    base::debug::Alias(ranges_ptr);
+    base::debug::Alias(&ranges_ptr);
     base::debug::Alias(&ranges_checksum);
     base::debug::Alias(&ranges_calc_checksum);
     base::debug::Alias(&histogram_name);
     base::debug::Alias(&flags);
   }
   // Checksum corruption might not have caused order corruption.
   CHECK_EQ(0U, HistogramBase::RANGE_CHECKSUM_ERROR & corruption);
 
   // Note, at this point corruption can only be COUNT_HIGH_ERROR or
   // COUNT_LOW_ERROR and they never arise together, so we don't need to extract
@@ skipping 27 matching lines @@
 
   histogram_flattener_->InconsistencyDetectedInLoggedCount(discrepancy);
   if (discrepancy > Histogram::kCommonRaceBasedCountMismatch) {
     // Fix logged_samples.
     logged_samples->Subtract(*logged_samples);
     logged_samples->Add(new_snapshot);
   }
 }
 
 }  // namespace base