Rewrite std::string("") to std::string(), Linux edition.

base/metrics/stats_table.cc

 // Copyright (c) 2011 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 "base/metrics/stats_table.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/process_util.h"
 #include "base/shared_memory.h"
@@ skipping 413 matching lines @@
 
 int* StatsTable::FindLocation(const char* name) {
   // Get the static StatsTable
   StatsTable *table = StatsTable::current();
   if (!table)
     return NULL;
 
   // Get the slot for this thread.  Try to register
   // it if none exists.
   int slot = table->GetSlot();
-  if (!slot && !(slot = table->RegisterThread("")))
-      return NULL;
+  if (!slot && !(slot = table->RegisterThread(std::string())))
+    return NULL;
 
   // Find the counter id for the counter.
   std::string str_name(name);
   int counter = table->FindCounter(str_name);
 
   // Now we can find the location in the table.
   return table->GetLocation(counter, slot);
 }
 
 void StatsTable::UnregisterThread() {
@@ skipping 105 matching lines @@
     static_cast<TLSData*>(tls_index_.Get());
   if (!data)
     return NULL;
 
   DCHECK(data->slot);
   DCHECK_EQ(data->table, this);
   return data;
 }
 
 }  // namespace base