Use correct IntToString variants in //chrome

chrome/browser/predictors/resource_prefetch_predictor.cc

 // Copyright 2014 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 "chrome/browser/predictors/resource_prefetch_predictor.h"
 
 #include <map>
 #include <set>
 #include <utility>
 
@@ skipping 1227 matching lines @@
     } else if (it->second) {
       ++prefetch_cached;
     } else {
       ++prefetch_network;
     }
   }
 
   std::string prefix = key_type == PREFETCH_KEY_TYPE_HOST ?
       "ResourcePrefetchPredictor.Host.Predicted" :
       "ResourcePrefetchPredictor.Url.Predicted";
-  std::string suffix = "_" + base::IntToString(max_assumed_prefetched);
+  std::string suffix = "_" + base::SizeTToString(max_assumed_prefetched);
 
   // Macros to avoid using the STATIC_HISTOGRAM_POINTER_BLOCK in UMA_HISTOGRAM
   // definitions.
 #define RPP_PREDICTED_HISTOGRAM_COUNTS(name, value) \
   { \
     std::string full_name = prefix + name + suffix; \
     base::HistogramBase* histogram = base::Histogram::FactoryGet( \
         full_name, 1, 1000000, 50, \
         base::Histogram::kUmaTargetedHistogramFlag); \
     histogram->Add(value); \
@@ skipping 75 matching lines @@
     // HistoryService is already loaded. Continue with Initialization.
     OnHistoryAndCacheLoaded();
     return;
   }
   DCHECK(!history_service_observer_.IsObserving(history_service));
   history_service_observer_.Add(history_service);
   return;
 }
 
 }  // namespace predictors