Use string for Histogram names since these are all ASCII anyway wide-characte...

net/disk_cache/stats.cc

 // Copyright (c) 2006-2008 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 "net/disk_cache/stats.h"
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "net/disk_cache/backend_impl.h"
 
@@ skipping 105 matching lines @@
     if (!CreateStats(backend, &address, &stats))
       return false;
     *storage_addr = address.value();
   }
 
   storage_addr_ = address.value();
   backend_ = backend;
   if (!size_histogram_.get()) {
     // Stats may be reused when the cache is re-created, but we want only one
     // histogram at any given time.
-    size_histogram_.reset(new StatsHistogram(L"DiskCache.SizeStats"));
+    size_histogram_.reset(new StatsHistogram("DiskCache.SizeStats"));
     size_histogram_->Init(this);
   }
 
   memcpy(data_sizes_, stats.data_sizes, sizeof(data_sizes_));
   memcpy(counters_, stats.counters, sizeof(counters_));
 
   return true;
 }
 
 Stats::~Stats() {
@@ skipping 123 matching lines @@
   }
 
   for (int i = MIN_COUNTER + 1; i < MAX_COUNTER; i++) {
     item.first = kCounterNames[i];
     item.second = StringPrintf("0x%I64x", counters_[i]);
     items->push_back(item);
   }
 }
 
 }  // namespace disk_cache
-