Cleanup: Better constify some strings in net/.

net/disk_cache/blockfile/backend_impl.cc

 // Copyright (c) 2012 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/blockfile/backend_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
@@ skipping 23 matching lines @@
 
 // Provide a BackendImpl object to macros from histogram_macros.h.
 #define CACHE_UMA_BACKEND_IMPL_OBJ this
 
 using base::Time;
 using base::TimeDelta;
 using base::TimeTicks;
 
 namespace {
 
-const char* kIndexName = "index";
+const char kIndexName[] = "index";
 
 // Seems like ~240 MB correspond to less than 50k entries for 99% of the people.
 // Note that the actual target is to keep the index table load factor under 55%
 // for most users.
 const int k64kEntriesStore = 240 * 1000 * 1000;
 const int kBaseTableLen = 64 * 1024;
 
 // Avoid trimming the cache for the first 5 minutes (10 timer ticks).
 const int kTrimDelay = 10;
 
@@ skipping 2030 matching lines @@
     if (total_memory > kMaxBuffersSize || total_memory <= 0)
       total_memory = kMaxBuffersSize;
 
     done = true;
   }
 
   return static_cast<int>(total_memory);
 }
 
 }  // namespace disk_cache