[Omnibox] Remove unused histograms.

chrome/browser/autocomplete/history_quick_provider.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/browser/autocomplete/history_quick_provider.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/i18n/break_iterator.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
-#include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/autocomplete/history_url_provider.h"
 #include "chrome/browser/autocomplete/in_memory_url_index.h"
 #include "chrome/browser/autocomplete/in_memory_url_index_types.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
@@ skipping 37 matching lines @@
   if ((input.type() == metrics::OmniboxInputType::INVALID) ||
       (input.type() == metrics::OmniboxInputType::FORCED_QUERY))
     return;
 
   autocomplete_input_ = input;
 
   // TODO(pkasting): We should just block here until this loads.  Any time
   // someone unloads the history backend, we'll get inconsistent inline
   // autocomplete behavior here.
   if (in_memory_url_index_) {
-    base::TimeTicks start_time = base::TimeTicks::Now();
     DoAutocomplete();
-    if (input.text().length() < 6) {
-      base::TimeTicks end_time = base::TimeTicks::Now();
-      std::string name = "HistoryQuickProvider.QueryIndexTime." +
-          base::IntToString(input.text().length());
-      base::HistogramBase* counter = base::Histogram::FactoryGet(
-          name, 1, 1000, 50, base::Histogram::kUmaTargetedHistogramFlag);
-      counter->Add(static_cast<int>((end_time - start_time).InMilliseconds()));
-    }
   }
 }
 
 HistoryQuickProvider::~HistoryQuickProvider() {
 }
 
 void HistoryQuickProvider::DoAutocomplete() {
   // Get the matching URLs from the DB.
   ScoredHistoryMatches matches = in_memory_url_index_->HistoryItemsForTerms(
       autocomplete_input_.text(), autocomplete_input_.cursor_position(),
@@ skipping 190 matching lines @@
   match.description = info.title();
   match.description_class = SpansFromTermMatch(
       history_match.title_matches, match.description.length(), false);
 
   match.RecordAdditionalInfo("typed count", info.typed_count());
   match.RecordAdditionalInfo("visit count", info.visit_count());
   match.RecordAdditionalInfo("last visit", info.last_visit());
 
   return match;
 }