Instrumenting more of WM_ message processing for jank

chrome/browser/ui/omnibox/omnibox_edit_model.cc

 // Copyright 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/ui/omnibox/omnibox_edit_model.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
 #include "base/format_macros.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier_factory.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/autocomplete/history_url_provider.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
@@ skipping 522 matching lines @@
                                   false, true);
   AutocompleteActionPredictor* action_predictor =
       predictors::AutocompleteActionPredictorFactory::GetForProfile(profile_);
   action_predictor->ClearTransitionalMatches();
   action_predictor->CancelPrerender();
 }
 
 void OmniboxEditModel::StartAutocomplete(
     bool has_selected_text,
     bool prevent_inline_autocomplete) {
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/440919 is fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "440919 OmniboxEditModel::StartAutocomplete"));
   size_t cursor_position;
   if (inline_autocomplete_text_.empty()) {
     // Cursor position is equivalent to the current selection's end.
     size_t start;
     view_->GetSelectionBounds(&start, &cursor_position);
     // Adjust cursor position taking into account possible keyword in the user
     // text.  We rely on DisplayTextFromUserText() method which is consistent
     // with keyword extraction done in KeywordProvider/SearchProvider.
     const size_t cursor_offset =
         user_text_.length() - DisplayTextFromUserText(user_text_).length();
@@ skipping 896 matching lines @@
   // Update state and notify view if the omnibox has focus and the caret
   // visibility changed.
   const bool was_caret_visible = is_caret_visible();
   focus_state_ = state;
   if (focus_state_ != OMNIBOX_FOCUS_NONE &&
       is_caret_visible() != was_caret_visible)
     view_->ApplyCaretVisibility();
 
   delegate_->OnFocusChanged(focus_state_, reason);
 }