Add LOCAL_ prefix to non-UMA histogram macros.

chrome/renderer/spellchecker/hunspell_engine.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 "chrome/renderer/spellchecker/hunspell_engine.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/files/memory_mapped_file.h"
-#include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "chrome/common/spellcheck_common.h"
 #include "chrome/common/spellcheck_messages.h"
 #include "content/public/renderer/render_thread.h"
 #include "third_party/hunspell/src/hunspell/hunspell.hxx"
 
-using base::TimeTicks;
 using content::RenderThread;
 
 namespace {
   // Maximum length of words we actually check.
   // 64 is the observed limits for OSX system checker.
   const size_t kMaxCheckedLen = 64;
 
   // Maximum length of words we provide suggestions for.
   // 24 is the observed limits for OSX system checker.
   const size_t kMaxSuggestLen = 24;
@@ skipping 27 matching lines @@
   // Delay the actual initialization of hunspell until it is needed.
 }
 
 void HunspellEngine::InitializeHunspell() {
   if (hunspell_.get())
     return;
 
   bdict_file_.reset(new base::MemoryMappedFile);
 
   if (bdict_file_->Initialize(file_.Pass())) {
-    TimeTicks debug_start_time = base::Histogram::DebugNow();
-
     hunspell_.reset(new Hunspell(bdict_file_->data(), bdict_file_->length()));
-
-    DHISTOGRAM_TIMES("Spellcheck.InitTime",
-                     base::Histogram::DebugNow() - debug_start_time);
   } else {
     NOTREACHED() << "Could not mmap spellchecker dictionary.";
   }
 }
 
 bool HunspellEngine::CheckSpelling(const base::string16& word_to_check,
                                    int tag) {
   // Assume all words that cannot be checked are valid. Since Chrome can't
   // offer suggestions on them, either, there's no point in flagging them to
   // the user.
@@ skipping 52 matching lines @@
   // Don't initialize if hunspell is disabled.
   if (file_.IsValid())
     InitializeHunspell();
 
   return !initialized_;
 }
 
 bool HunspellEngine::IsEnabled() {
   return hunspell_enabled_;
 }