Omnibox - Make Omnibox Extensions Ignore Stop() Calls Due to User Idleness

chrome/browser/autocomplete/history_url_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_url_provider.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 475 matching lines @@
   // NOTE: We could try hard to do less work in the |minimal_changes| case
   // here; some clever caching would let us reuse the raw matches from the
   // history DB without re-querying.  However, we'd still have to go back to
   // the history thread to mark these up properly, and if pass 2 is currently
   // running, we'd need to wait for it to return to the main thread before
   // doing this (we can't just write new data for it to read due to thread
   // safety issues).  At that point it's just as fast, and easier, to simply
   // re-run the query from scratch and ignore |minimal_changes|.
 
   // Cancel any in-progress query.
-  Stop(false);
+  Stop(false, false);
 
   matches_.clear();
 
   if (called_due_to_focus ||
       (input.type() == metrics::OmniboxInputType::INVALID) ||
       (input.type() == metrics::OmniboxInputType::FORCED_QUERY))
     return;
 
   // Do some fixup on the user input before matching against it, so we provide
   // good results for local file paths, input with spaces, etc.
@@ skipping 70 matching lines @@
   // where we can read the full on-disk DB.
   if (input.want_asynchronous_matches()) {
     done_ = false;
     params_ = params.release();  // This object will be destroyed in
                                  // QueryComplete() once we're done with it.
     history_service->ScheduleAutocomplete(
         base::Bind(&HistoryURLProvider::ExecuteWithDB, this, params_));
   }
 }
 
-void HistoryURLProvider::Stop(bool clear_cached_results) {
+void HistoryURLProvider::Stop(bool clear_cached_results,
+                              bool due_to_user_inactivity) {
   done_ = true;
 
   if (params_)
     params_->cancel_flag.Set();
 }
 
 AutocompleteMatch HistoryURLProvider::SuggestExactInput(
     const base::string16& text,
     const GURL& destination_url,
     bool trim_http) {
@@ skipping 554 matching lines @@
     AutocompleteMatch::ClassifyLocationInString(base::string16::npos, 0,
         match.contents.length(), ACMatchClassification::URL,
         &match.contents_class);
   }
   match.description = info.title();
   match.description_class =
       ClassifyDescription(params.input.text(), match.description);
   RecordAdditionalInfoFromUrlRow(info, &match);
   return match;
 }