MD History: Refresh the list when clearing browsing data

chrome/browser/resources/md_history/app.crisper.js

Index: chrome/browser/resources/md_history/app.crisper.js
diff --git a/chrome/browser/resources/md_history/app.crisper.js b/chrome/browser/resources/md_history/app.crisper.js
index 3e75862e14094e32974a703a7d4959977c019372..6ccfcb46ace5134093697b92749f9dc3bc2e06ed 100644
--- a/chrome/browser/resources/md_history/app.crisper.js
+++ b/chrome/browser/resources/md_history/app.crisper.js
@@ -14084,6 +14084,11 @@ Polymer({
 
     querying: Boolean,
 
+    clearingHistory_: {
+      type: Boolean,
+      value: false,
+    },
+
     // An array of history entries in reverse chronological order.
     historyData_: Array,
 
@@ -14136,13 +14141,24 @@ Polymer({
    * Adds the newly updated history results into historyData_. Adds new fields
    * for each result.
    * @param {!Array<!HistoryEntry>} historyResults The new history results.
+   * @param {boolean} incremental Whether the result is from loading more
+   * history, or a new search/list reload.
+   * @param {number} selectedCount Number of selected items.
    */
-  addNewResults: function(historyResults) {
+  addNewResults: function(historyResults, incremental, selectedCount) {
     var results = historyResults.slice();
     /** @type {IronScrollThresholdElement} */(this.$['scroll-threshold'])
         .clearTriggers();
 
-    if (this.lastSearchedTerm_ != this.searchedTerm) {
+    // Do not reload the list when clearing browsing data and there are items
+    // checked.
+    if (this.clearingHistory_) {
+      this.clearingHistory_ = false;
+      if (selectedCount > 0)
+        return;
+    }
+
+    if (!incremental) {
       this.resultLoadingDisabled_ = false;
       if (this.historyData_)
         this.splice('historyData_', 0, this.historyData_.length);
@@ -14162,6 +14178,10 @@ Polymer({
     }
   },
 
+  clearingHistory: function() {
+    this.clearingHistory_ = true;
+  },
+
   /**
    * Called when the page is scrolled to near the bottom of the list.
    * @private
@@ -14385,7 +14405,8 @@ Polymer({
     }
 
     var list = /** @type {HistoryListElement} */(this.$['infinite-list']);
-    list.addNewResults(results);
+    list.addNewResults(results, this.queryState.incremental,
+        this.getSelectedItemCount());
     if (info.finished)
       list.disableResultLoading();
   },
@@ -14428,6 +14449,11 @@ Polymer({
     ]);
   },
 
+  clearingHistory: function() {
+    /** @type {HistoryListElement} */ (this.$['infinite-list'])
+        .clearingHistory();
+  },
+
   /** @return {number} */
   getSelectedItemCount: function() {
     return this.getSelectedList_().selectedPaths.size;
@@ -15247,6 +15273,15 @@ Polymer({
   },
 
   /**
+   * Called when browsing data is cleared.
+   */
+  historyDeleted: function() {
+    this.$['history'].clearingHistory();
+    // Call into list-container to restore search state.
+    this.$['history'].queryHistory(false);
+  },
+
+  /**
    * Update sign in state of synced device manager after user logs in or out.
    * @param {boolean} isUserSignedIn
    */