Issue 501916 : Add data type counts to profile deletion flow

ui/login/account_picker/user_pod_row.js

Index: ui/login/account_picker/user_pod_row.js
diff --git a/ui/login/account_picker/user_pod_row.js b/ui/login/account_picker/user_pod_row.js
index a8ab31671f9b8187395807bf7674e0572c29d9e4..c2d5b540c2fc7ea8f94f7d66d7c254e6849f85c6 100644
--- a/ui/login/account_picker/user_pod_row.js
+++ b/ui/login/account_picker/user_pod_row.js
@@ -954,23 +954,6 @@ cr.define('login', function() {
     },
 
     /**
-     * Gets action box menu, remove user warning text div.
-     * @type {!HTMLInputElement}
-     */
-    get actionBoxRemoveUserWarningTextElement() {
-      return this.querySelector('.action-box-remove-user-warning-text');
-    },
-
-    /**
-     * Gets action box menu, remove legacy supervised user warning text div.
-     * @type {!HTMLInputElement}
-     */
-    get actionBoxRemoveLegacySupervisedUserWarningTextElement() {
-      return this.querySelector(
-          '.action-box-remove-legacy-supervised-user-warning-text');
-    },
-
-    /**
      * Gets action box menu, remove user command item div.
      * @type {!HTMLInputElement}
      */
@@ -1411,6 +1394,12 @@ cr.define('login', function() {
      * for all users on desktop.
      */
     showRemoveWarning_: function() {
+      // Temporary add/remove this class to choose the shorter dialog. The
+      // problems of switching from a shorter dialog to a longer dialog is
+      // visually less problematic than otherwise.
+      // TODO(lwchkg): Show the correct dialog in one pass.
+      this.classList.toggle('has-no-stats', this.classList.contains('synced'));
+
       this.actionBoxMenuRemoveElement.hidden = true;
       this.actionBoxRemoveUserWarningElement.hidden = false;
       this.actionBoxRemoveUserWarningButtonElement.focus();
@@ -1425,6 +1414,63 @@ cr.define('login', function() {
         this.actionBoxAreaElement.classList.add('menu-moved-up');
       }
       chrome.send('logRemoveUserWarningShown');
+
+      // Show extra statistics information for desktop users
+      if (this.user.isDesktopUser) {
+        // set a global handler for the callback
+        window.updateRemoveWarningDialog =
+            this.updateRemoveWarningDialog_.bind(this);
+        window.updateRemoveWarningDialogHasNoStats =
+            this.updateRemoveWarningDialogHasNoStats_.bind(this);
+        chrome.send('removeUserWarningLoadStats', [this.user.profilePath]);
+      }
+    },
+
+    /**
+     * Refresh the statistics in the remove user warning dialog.
+     * @param {string} profilePath The filepath of the URL (must be verified)
+     * @param {Object} profileStats Statistics associated with profileURL.
+     */
+    updateRemoveWarningDialog_: function(profilePath, profileStats) {
+      if (profilePath === this.user.profilePath) {
+        // Converting profileStats into id attribute by an object.
+        var stats_id_map = {
+          'BrowsingHistory': 'action-box-remove-user-warning-history',
+          'Passwords': 'action-box-remove-user-warning-passwords',
+          'Bookmarks': 'action-box-remove-user-warning-bookmarks',
+          'Settings': 'action-box-remove-user-warning-settings',
+        }
+        // Load individual statistics
+        var num_stats_loaded = 0;
+        var total_count = 0;
+        for (var key in profileStats) {
+          if (stats_id_map.hasOwnProperty(key)) {
+            this.querySelector("." + stats_id_map[key]).textContent
+                = profileStats[key];
+            num_stats_loaded++;
+            total_count += profileStats[key];
+          }
+        }
+        // Write total number if all statistics are loaded.
+        if (num_stats_loaded === Object.keys(stats_id_map).length) {
+          elements = this.getElementsByClassName('total-count');
+          for (var i = 0; i < elements.length; i++) {
+            elements[i].textContent = total_count;
+          }
+        }
+      }
+    },
+
+    /**
+     * Select the dialog the statistics in the remove user warning dialog.
+     * @param {string} profilePath The filepath of the URL (must be verified)
+     * @param {boolean} hasNoStats Whether the profile has no statistics
+     *                             available.
+     */
+    updateRemoveWarningDialogHasNoStats_: function(profilePath, hasNoStats) {
+      if (profilePath === this.user.profilePath) {
+        this.classList.toggle('has-no-stats', hasNoStats);
+      }
     },
 
     /**
@@ -1946,17 +1992,29 @@ cr.define('login', function() {
       var isLockedUser = this.user.needsSignin;
       var isLegacySupervisedUser = this.user.legacySupervisedUser;
       var isChildUser = this.user.childUser;
+      var isSyncedUser = this.user.emailAddress !== "";
       this.classList.toggle('locked', isLockedUser);
       this.classList.toggle('legacy-supervised', isLegacySupervisedUser);
       this.classList.toggle('child', isChildUser);
+      this.classList.toggle('synced', isSyncedUser);
 
       if (this.isAuthTypeUserClick)
         this.passwordLabelElement.textContent = this.authValue;
 
-      this.actionBoxRemoveUserWarningTextElement.hidden =
-          isLegacySupervisedUser;
-      this.actionBoxRemoveLegacySupervisedUserWarningTextElement.hidden =
-          !isLegacySupervisedUser;
+      // Convert HTML textContent into HTML. Done only once.
+      var tag =
+          this.querySelector('.action-box-remove-user-warning-text-nonsync');
+      if (!tag.childElementCount) {
+          this.querySelector('.action-box-remove-user-warning-text-nonsync')

[lwchkg, 2015/07/30 17:07:19]

nits: wrong indentation. Will update in the next patch.

+              .innerHTML = loadTimeData.getString(
+                  'removeUserWarningTextNonSync');
+          this.querySelector('.action-box-remove-user-warning-text-sync')
+              .innerHTML = loadTimeData.getString(
+                  'removeUserWarningTextSync');
+          this.querySelector('.action-box-remove-user-warning-manage-link-sync')
+              .innerHTML = loadTimeData.getString(
+                  'removeUserWarningManageLinkSync');
+      }
 
       this.passwordElement.setAttribute('aria-label', loadTimeData.getStringF(
         'passwordFieldAccessibleName', this.user_.emailAddress));