MD History: Delete Grouped History

chrome/browser/resources/md_history/query_manager.js

 // Copyright 2017 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.
 
 Polymer({
   is: 'history-query-manager',
 
   properties: {
     /** @type {QueryState} */
     queryState: {
       type: Object,
       notify: true,
       value: function() {
         return {
           // Whether the most recent query was incremental.
           incremental: false,
           // A query is initiated by page load.
           querying: true,
           queryingDisabled: false,
-          _range: HistoryRange.ALL_TIME,
           searchTerm: '',
-          groupedOffset: 0,
-
-          set range(val) {
-            this._range = Number(val);
-          },
-          get range() {
-            return this._range;
-          },
         };
       },
     },
 
     /** @type {QueryResult} */
     queryResult: Object,
 
     /** @type {?HistoryRouterElement} */
     router: Object,
   },
@@ skipping 32 matching lines @@
 
     this.set('queryState.querying', true);
     this.set('queryState.incremental', incremental);
 
     var lastVisitTime = 0;
     if (incremental) {
       var lastVisit = this.queryResult.results.slice(-1)[0];
       lastVisitTime = lastVisit ? Math.floor(lastVisit.time) : 0;
     }
 
-    var maxResults =
-        this.queryState.range == HistoryRange.ALL_TIME ? RESULTS_PER_PAGE : 0;
-
     chrome.send('queryHistory', [
       queryState.searchTerm,
-      queryState.groupedOffset,
-      queryState.range,
+      0,  // No grouped offset.
+      0,  // Disable grouping.
       lastVisitTime,
-      maxResults,
+      RESULTS_PER_PAGE,
     ]);
   },
 
   /**
    * @param {!Event} e
    * @private
    */
   onChangeQuery_: function(e) {
-    var changes =
-        /** @type {{range: ?HistoryRange, offset: ?number, search: ?string}} */
-        (e.detail);
+    var changes = /** @type {{search: ?string}} */ (e.detail);
     var needsUpdate = false;
 
-    if (changes.range != null && changes.range != this.queryState.range) {
-      this.set('queryState.range', changes.range);
-      needsUpdate = true;
-
-      // Reset back to page 0 of the results, unless changing to a specific
-      // page.
-      if (!changes.offset)
-        this.set('queryState.groupedOffset', 0);
-
-      this.fire('history-view-changed');
-    }
-
-    if (changes.offset != null &&
-        changes.offset != this.queryState.groupedOffset) {
-      this.set('queryState.groupedOffset', changes.offset);
-      needsUpdate = true;
-    }
-
     if (changes.search != null &&
         changes.search != this.queryState.searchTerm) {
       this.set('queryState.searchTerm', changes.search);
       needsUpdate = true;
     }
 
     if (needsUpdate) {
       this.queryHistory_(false);
       if (this.router)
         this.router.serializeUrl();
     }
   },
 
   /**
    * @param {!Event} e
    * @private
    */
   onQueryHistory_: function(e) {
     this.queryHistory_(/** @type {boolean} */ e.detail);
     return false;
   },
 
   /** @private */
   searchTermChanged_: function() {
     // TODO(tsergeant): Ignore incremental searches in this metric.
     if (this.queryState.searchTerm)
       md_history.BrowserService.getInstance().recordAction('Search');
   },
 });