Add traces for main omnibox providers

components/omnibox/browser/autocomplete_controller.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 "components/omnibox/browser/autocomplete_controller.h"
 
 #include <stddef.h>
 #include <set>
 #include <string>
 #include <utility>
 
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/omnibox/browser/autocomplete_controller_delegate.h"
 #include "components/omnibox/browser/bookmark_provider.h"
 #include "components/omnibox/browser/builtin_provider.h"
 #include "components/omnibox/browser/clipboard_url_provider.h"
 #include "components/omnibox/browser/history_quick_provider.h"
 #include "components/omnibox/browser/history_url_provider.h"
 #include "components/omnibox/browser/keyword_provider.h"
 #include "components/omnibox/browser/omnibox_field_trial.h"
 #include "components/omnibox/browser/search_provider.h"
@@ skipping 196 matching lines @@
   // to ensure they won't call us back if they outlive us.  (Practically,
   // calling Stop() should also cancel those tasks and make it so that we hold
   // the only refs.)  We also don't want to bother notifying anyone of our
   // result changes here, because the notification observer is in the midst of
   // shutdown too, so we don't ask Stop() to clear |result_| (and notify).
   result_.Reset();  // Not really necessary.
   Stop(false);
 }
 
 void AutocompleteController::Start(const AutocompleteInput& input) {
+  TRACE_EVENT1("omnibox", "AutocompleteController::Start",
+               "text", base::UTF16ToUTF8(input.text()));
   const base::string16 old_input_text(input_.text());
   const bool old_want_asynchronous_matches = input_.want_asynchronous_matches();
   const bool old_from_omnibox_focus = input_.from_omnibox_focus();
   input_ = input;
 
   // See if we can avoid rerunning autocomplete when the query hasn't changed
   // much.  When the user presses or releases the ctrl key, the desired_tld
   // changes, and when the user finishes an IME composition, inline autocomplete
   // may no longer be prevented.  In both these cases the text itself hasn't
   // changed since the last query, and some providers can do much less work (and
@@ skipping 144 matching lines @@
   if (!template_url)
     return;
 
   match->destination_url = GURL(template_url->url_ref().ReplaceSearchTerms(
       search_terms_args, template_url_service_->search_terms_data()));
 }
 
 void AutocompleteController::UpdateResult(
     bool regenerate_result,
     bool force_notify_default_match_changed) {
+  TRACE_EVENT0("omnibox", "AutocompleteController::UpdateResult");
   const bool last_default_was_valid = result_.default_match() != result_.end();
   // The following three variables are only set and used if
   // |last_default_was_valid|.
   base::string16 last_default_fill_into_edit, last_default_keyword,
       last_default_associated_keyword;
   if (last_default_was_valid) {
     last_default_fill_into_edit = result_.default_match()->fill_into_edit;
     last_default_keyword = result_.default_match()->keyword;
     if (result_.default_match()->associated_keyword != NULL)
       last_default_associated_keyword =
@@ skipping 244 matching lines @@
   expire_timer_.Stop();
   stop_timer_.Stop();
   done_ = true;
   if (clear_result && !result_.empty()) {
     result_.Reset();
     // NOTE: We pass in false since we're trying to only clear the popup, not
     // touch the edit... this is all a mess and should be cleaned up :(
     NotifyChanged(false);
   }
 }