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util/numeric/checked_address_range.cc

Index: util/numeric/checked_address_range.cc
diff --git a/util/numeric/checked_address_range.cc b/util/numeric/checked_address_range.cc
index dcbde23e72ea6f6d9c6f7c687cd77a7e63cf96e5..1d50696f6e3a486490aeba31b6aca63f09bced8e 100644
--- a/util/numeric/checked_address_range.cc
+++ b/util/numeric/checked_address_range.cc
@@ -14,6 +14,8 @@
 
 #include "util/numeric/checked_address_range.h"
 
+#include "base/strings/stringprintf.h"
+
 #if defined(OS_MACOSX)
 #include <mach/mach.h>
 #elif defined(OS_WIN)
@@ -109,6 +111,12 @@ bool CheckedAddressRangeGeneric<ValueType, SizeType>::ContainsRange(
                     : range_32_.ContainsRange(that.range_32_);
 }
 
+template <class ValueType, class SizeType>
+std::string CheckedAddressRangeGeneric<ValueType, SizeType>::AsString() const {
+  return base::StringPrintf(
+      "0x%llx + 0x%llx (%s)", Base(), Size(), Is64Bit() ? "64" : "32");
+}
+
 // Explicit instantiations for the cases we use.
 #if defined(OS_MACOSX)
 template class CheckedAddressRangeGeneric<mach_vm_address_t, mach_vm_size_t>;