Revert 150240 (broke several bots on the main waterfall)

base/metrics/histogram.cc

Index: base/metrics/histogram.cc
===================================================================
--- base/metrics/histogram.cc	(revision 150245)
+++ base/metrics/histogram.cc	(working copy)
@@ -134,7 +134,7 @@
                                  Sample maximum,
                                  size_t bucket_count,
                                  Flags flags) {
-  DCHECK(InspectConstructionArguments(name, &minimum, &maximum, &bucket_count));
+  CHECK(InspectConstructionArguments(name, &minimum, &maximum, &bucket_count));
 
   Histogram* histogram = StatisticsRecorder::FindHistogram(name);
   if (!histogram) {
@@ -465,11 +465,7 @@
     DVLOG(1) << "Histogram: " << name << " has bad maximum: " << *maximum;
     *maximum = kSampleType_MAX - 1;
   }
-  if (*bucket_count >= kBucketCount_MAX)
-    *bucket_count = kBucketCount_MAX - 1;
 
-  if (minimum >= maximum)
-    return false;
   if (*bucket_count < 3 || *bucket_count >= kBucketCount_MAX)
     return false;
   if (*bucket_count > static_cast<size_t>(*maximum - *minimum + 2))
@@ -681,8 +677,8 @@
                                        Sample maximum,
                                        size_t bucket_count,
                                        Flags flags) {
-  DCHECK(Histogram::InspectConstructionArguments(name, &minimum, &maximum,
-                                                 &bucket_count));
+  CHECK(Histogram::InspectConstructionArguments(name, &minimum, &maximum,
+                                                &bucket_count));
 
   Histogram* histogram = StatisticsRecorder::FindHistogram(name);
   if (!histogram) {