Fix a typo. It will cause crash when client uses a histogram with bad maximum.

BUG=140145
Review URL: https://chromiumcodereview.appspot.com/10829133

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149541 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/metrics/histogram.cc b/base/metrics/histogram.cc
index 40f5c6d..4087ad7 100644
--- a/base/metrics/histogram.cc
+++ b/base/metrics/histogram.cc
@@ -458,12 +458,12 @@
                                              size_t* bucket_count) {
   // Defensive code for backward compatibility.
   if (*minimum < 1) {
-    DLOG(WARNING) << "Histogram: " << name << " Bad minimum: " << *minimum;
+    DVLOG(1) << "Histogram: " << name << " has bad minimum: " << *minimum;
     *minimum = 1;
   }
   if (*maximum >= kSampleType_MAX) {
-    DLOG(WARNING) << "Histogram: " << name << " Bad maximum: " << *maximum;
-    *maximum = kSampleType_MAX;
+    DVLOG(1) << "Histogram: " << name << " has bad maximum: " << *maximum;
+    *maximum = kSampleType_MAX - 1;
   }
 
   if (*bucket_count < 3 || *bucket_count >= kBucketCount_MAX)