Remove some platform specific stuff from views.

ui/file_manager/file_manager/foreground/js/ui/drive_banners.js

Index: ui/file_manager/file_manager/foreground/js/ui/drive_banners.js
diff --git a/ui/file_manager/file_manager/foreground/js/ui/drive_banners.js b/ui/file_manager/file_manager/foreground/js/ui/drive_banners.js
deleted file mode 100644
index 4776e403dfd1a2625d6845a9e68347ae3824feb9..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/foreground/js/ui/drive_banners.js
+++ /dev/null
@@ -1,682 +0,0 @@
-// 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.
-
-'use strict';
-
-/**
- * Responsible for showing following banners in the file list.
- *  - WelcomeBanner
- *  - AuthFailBanner
- * @param {DirectoryModel} directoryModel The model.
- * @param {VolumeManagerWrapper} volumeManager The manager.
- * @param {Document} document HTML document.
- * @param {boolean} showOffers True if we should show offer banners.
- * @constructor
- * @extends {cr.EventTarget}
- */
-function FileListBannerController(
-    directoryModel, volumeManager, document, showOffers) {
-  this.directoryModel_ = directoryModel;
-  this.volumeManager_ = volumeManager;
-  this.document_ = document;
-  this.showOffers_ = showOffers;
-  this.driveEnabled_ = false;
-
-  this.initializeWelcomeBanner_();
-  this.privateOnDirectoryChangedBound_ =
-      this.privateOnDirectoryChanged_.bind(this);
-
-  var handler = this.checkSpaceAndMaybeShowWelcomeBanner_.bind(this);
-  this.directoryModel_.addEventListener('scan-completed', handler);
-  this.directoryModel_.addEventListener('rescan-completed', handler);
-  this.directoryModel_.addEventListener('directory-changed',
-      this.onDirectoryChanged_.bind(this));
-
-  this.unmountedPanel_ = this.document_.querySelector('#unmounted-panel');
-  this.volumeManager_.volumeInfoList.addEventListener(
-      'splice', this.onVolumeInfoListSplice_.bind(this));
-  this.volumeManager_.addEventListener('drive-connection-changed',
-      this.onDriveConnectionChanged_.bind(this));
-
-  chrome.storage.onChanged.addListener(this.onStorageChange_.bind(this));
-  this.welcomeHeaderCounter_ = WELCOME_HEADER_COUNTER_LIMIT;
-  this.warningDismissedCounter_ = 0;
-  chrome.storage.local.get(
-      [WELCOME_HEADER_COUNTER_KEY, WARNING_DISMISSED_KEY],
-      function(values) {
-        this.welcomeHeaderCounter_ =
-            parseInt(values[WELCOME_HEADER_COUNTER_KEY], 10) || 0;
-        this.warningDismissedCounter_ =
-            parseInt(values[WARNING_DISMISSED_KEY], 10) || 0;
-      }.bind(this));
-
-  this.authFailedBanner_ =
-      this.document_.querySelector('#drive-auth-failed-warning');
-  var authFailedText = this.authFailedBanner_.querySelector('.drive-text');
-  authFailedText.innerHTML = util.htmlUnescape(str('DRIVE_NOT_REACHED'));
-  authFailedText.querySelector('a').addEventListener('click', function(e) {
-    chrome.fileManagerPrivate.logoutUserForReauthentication();
-    e.preventDefault();
-  });
-  this.maybeShowAuthFailBanner_();
-}
-
-/**
- * FileListBannerController extends cr.EventTarget.
- */
-FileListBannerController.prototype.__proto__ = cr.EventTarget.prototype;
-
-/**
- * Key in localStorage to keep number of times the Drive Welcome
- * banner has shown.
- */
-var WELCOME_HEADER_COUNTER_KEY = 'driveWelcomeHeaderCounter';
-
-// If the warning was dismissed before, this key stores the quota value
-// (as of the moment of dismissal).
-// If the warning was never dismissed or was reset this key stores 0.
-var WARNING_DISMISSED_KEY = 'driveSpaceWarningDismissed';
-
-/**
- * Maximum times Drive Welcome banner could have shown.
- */
-var WELCOME_HEADER_COUNTER_LIMIT = 25;
-
-/**
- * Initializes the banner to promote DRIVE.
- * This method must be called before any of showing banner functions, and
- * also before registering them as callbacks.
- * @private
- */
-FileListBannerController.prototype.initializeWelcomeBanner_ = function() {
-  this.usePromoWelcomeBanner_ = !util.boardIs('x86-mario') &&
-                                !util.boardIs('x86-zgb') &&
-                                !util.boardIs('x86-alex');
-};
-
-/**
- * @param {number} value How many times the Drive Welcome header banner
- * has shown.
- * @private
- */
-FileListBannerController.prototype.setWelcomeHeaderCounter_ = function(value) {
-  var values = {};
-  values[WELCOME_HEADER_COUNTER_KEY] = value;
-  chrome.storage.local.set(values);
-};
-
-/**
- * @param {number} value How many times the low space warning has dismissed.
- * @private
- */
-FileListBannerController.prototype.setWarningDismissedCounter_ =
-    function(value) {
-  var values = {};
-  values[WARNING_DISMISSED_KEY] = value;
-  chrome.storage.local.set(values);
-};
-
-/**
- * chrome.storage.onChanged event handler.
- * @param {Object.<string, Object>} changes Changes values.
- * @param {string} areaName "local" or "sync".
- * @private
- */
-FileListBannerController.prototype.onStorageChange_ = function(changes,
-                                                               areaName) {
-  if (areaName == 'local' && WELCOME_HEADER_COUNTER_KEY in changes) {
-    this.welcomeHeaderCounter_ = changes[WELCOME_HEADER_COUNTER_KEY].newValue;
-  }
-  if (areaName == 'local' && WARNING_DISMISSED_KEY in changes) {
-    this.warningDismissedCounter_ = changes[WARNING_DISMISSED_KEY].newValue;
-  }
-};
-
-/**
- * Invoked when the drive connection status is change in the volume manager.
- * @private
- */
-FileListBannerController.prototype.onDriveConnectionChanged_ = function() {
-  this.maybeShowAuthFailBanner_();
-};
-
-/**
- * @param {string} type 'none'|'page'|'header'.
- * @param {string} messageId Resource ID of the message.
- * @private
- */
-FileListBannerController.prototype.prepareAndShowWelcomeBanner_ =
-    function(type, messageId) {
-  this.showWelcomeBanner_(type);
-
-  var container = this.document_.querySelector('.drive-welcome.' + type);
-  if (container.firstElementChild)
-    return;  // Do not re-create.
-
-  if (!this.document_.querySelector('link[drive-welcome-style]')) {
-    var style = this.document_.createElement('link');
-    style.rel = 'stylesheet';
-    style.href = 'foreground/css/drive_welcome.css';
-    style.setAttribute('drive-welcome-style', '');
-    this.document_.head.appendChild(style);
-  }
-
-  var wrapper = util.createChild(container, 'drive-welcome-wrapper');
-  util.createChild(wrapper, 'drive-welcome-icon');
-
-  var close = util.createChild(wrapper, 'cr-dialog-close');
-  close.addEventListener('click', this.closeWelcomeBanner_.bind(this));
-
-  var message = util.createChild(wrapper, 'drive-welcome-message');
-
-  var title = util.createChild(message, 'drive-welcome-title');
-
-  var text = util.createChild(message, 'drive-welcome-text');
-  text.innerHTML = str(messageId);
-
-  var links = util.createChild(message, 'drive-welcome-links');
-
-  var more;
-  if (this.usePromoWelcomeBanner_) {
-    var welcomeTitle = str('DRIVE_WELCOME_TITLE_ALTERNATIVE');
-    if (util.boardIs('link'))
-      welcomeTitle = str('DRIVE_WELCOME_TITLE_ALTERNATIVE_1TB');
-    title.textContent = welcomeTitle;
-    more = util.createChild(links,
-        'drive-welcome-button drive-welcome-start', 'a');
-    more.textContent = str('DRIVE_WELCOME_CHECK_ELIGIBILITY');
-    more.href = str('GOOGLE_DRIVE_REDEEM_URL');
-  } else {
-    title.textContent = str('DRIVE_WELCOME_TITLE');
-    more = util.createChild(links, 'plain-link', 'a');
-    more.textContent = str('DRIVE_LEARN_MORE');
-    more.href = str('GOOGLE_DRIVE_OVERVIEW_URL');
-  }
-  more.tabIndex = '16';  // See: go/filesapp-tabindex.
-  more.target = '_blank';
-
-  var dismiss;
-  if (this.usePromoWelcomeBanner_)
-    dismiss = util.createChild(links, 'drive-welcome-button');
-  else
-    dismiss = util.createChild(links, 'plain-link');
-
-  dismiss.classList.add('drive-welcome-dismiss');
-  dismiss.textContent = str('DRIVE_WELCOME_DISMISS');
-  dismiss.addEventListener('click', this.closeWelcomeBanner_.bind(this));
-
-  this.previousDirWasOnDrive_ = false;
-};
-
-/**
- * Show or hide the "Low Google Drive space" warning.
- * @param {boolean} show True if the box need to be shown.
- * @param {Object=} opt_sizeStats Size statistics. Should be defined when
- *     showing the warning.
- * @private
- */
-FileListBannerController.prototype.showLowDriveSpaceWarning_ =
-    function(show, opt_sizeStats) {
-  var box = this.document_.querySelector('#volume-space-warning');
-
-  // Avoid showing two banners.
-  // TODO(kaznacheev): Unify the low space warning and the promo header.
-  if (show)
-    this.cleanupWelcomeBanner_();
-
-  if (box.hidden == !show)
-    return;
-
-  if (this.warningDismissedCounter_) {
-    if (opt_sizeStats &&
-        // Quota had not changed
-        this.warningDismissedCounter_ == opt_sizeStats.totalSize &&
-        opt_sizeStats.remainingSize / opt_sizeStats.totalSize < 0.15) {
-      // Since the last dismissal decision the quota has not changed AND
-      // the user did not free up significant space. Obey the dismissal.
-      show = false;
-    } else {
-      // Forget the dismissal. Warning will be shown again.
-      this.setWarningDismissedCounter_(0);
-    }
-  }
-
-  box.textContent = '';
-  if (show && opt_sizeStats) {
-    var icon = this.document_.createElement('div');
-    icon.className = 'drive-icon';
-    box.appendChild(icon);
-
-    var text = this.document_.createElement('div');
-    text.className = 'drive-text';
-    text.textContent = strf('DRIVE_SPACE_AVAILABLE_LONG',
-        util.bytesToString(opt_sizeStats.remainingSize));
-    box.appendChild(text);
-
-    var link = this.document_.createElement('a');
-    link.className = 'plain-link';
-    link.textContent = str('DRIVE_BUY_MORE_SPACE_LINK');
-    link.href = str('GOOGLE_DRIVE_BUY_STORAGE_URL');
-    link.target = '_blank';
-    box.appendChild(link);
-
-    var close = this.document_.createElement('div');
-    close.className = 'cr-dialog-close';
-    box.appendChild(close);
-    close.addEventListener('click', function(total) {
-      var values = {};
-      values[WARNING_DISMISSED_KEY] = total;
-      chrome.storage.local.set(values);
-      box.hidden = true;
-      this.requestRelayout_(100);
-    }.bind(this, opt_sizeStats.totalSize));
-  }
-
-  if (box.hidden != !show) {
-    box.hidden = !show;
-    this.requestRelayout_(100);
-  }
-};
-/**
- * Closes the Drive Welcome banner.
- * @private
- */
-FileListBannerController.prototype.closeWelcomeBanner_ = function() {
-  this.cleanupWelcomeBanner_();
-  // Stop showing the welcome banner.
-  this.setWelcomeHeaderCounter_(WELCOME_HEADER_COUNTER_LIMIT);
-};
-
-/**
- * Shows or hides the welcome banner for drive.
- * @private
- */
-FileListBannerController.prototype.checkSpaceAndMaybeShowWelcomeBanner_ =
-    function() {
-  if (!this.isOnCurrentProfileDrive()) {
-    // We are not on the drive file system. Do not show (close) the welcome
-    // banner.
-    this.cleanupWelcomeBanner_();
-    this.previousDirWasOnDrive_ = false;
-    return;
-  }
-
-  var driveVolume = this.volumeManager_.getCurrentProfileVolumeInfo(
-      VolumeManagerCommon.VolumeType.DRIVE);
-  if (this.welcomeHeaderCounter_ >= WELCOME_HEADER_COUNTER_LIMIT ||
-      !driveVolume || driveVolume.error) {
-    // The banner is already shown enough times or the drive FS is not mounted.
-    // So, do nothing here.
-    return;
-  }
-
-  if (!this.showOffers_) {
-    // Because it is not necessary to show the offer, set
-    // |usePromoWelcomeBanner_| false here. Note that it probably should be able
-    // to do this in the constructor, but there remains non-trivial path,
-    // which may be causes |usePromoWelcomeBanner_| == true's behavior even
-    // if |showOffers_| is false.
-    // TODO(hidehiko): Make sure if it is expected or not, and simplify
-    // |showOffers_| if possible.
-    this.usePromoWelcomeBanner_ = false;
-  }
-
-  // Perform asynchronous tasks in parallel.
-  var group = new AsyncUtil.Group();
-
-  // Choose the offer basing on the board name. The default one is 100 GB.
-  var offerSize = 100;  // In GB.
-  var offerServiceId = 'drive.cros.echo.1';
-
-  if (util.boardIs('link')) {
-    offerSize = 1024;  // 1 TB.
-    offerServiceId = 'drive.cros.echo.2';
-  }
-
-  // If the offer has been checked, then do not show the promo anymore.
-  group.add(function(onCompleted) {
-    chrome.echoPrivate.getOfferInfo(offerServiceId, function(offerInfo) {
-      // If the offer has not been checked, then an error is raised.
-      if (!chrome.runtime.lastError)
-        this.usePromoWelcomeBanner_ = false;
-      onCompleted();
-    }.bind(this));
-  }.bind(this));
-
-  if (this.usePromoWelcomeBanner_) {
-    // getSizeStats for Drive file system accesses to the server, so we should
-    // minimize the invocation.
-    group.add(function(onCompleted) {
-      // Current directory must be set, since this code is called after
-      // scanning is completed. However, the volumeInfo may be gone.
-      chrome.fileManagerPrivate.getSizeStats(
-          driveVolume.volumeId,
-          function(result) {
-            if (result && result.totalSize >= offerSize * 1024 * 1024 * 1024)
-              this.usePromoWelcomeBanner_ = false;
-            onCompleted();
-          }.bind(this));
-    }.bind(this));
-  }
-
-  group.run(this.maybeShowWelcomeBanner_.bind(this));
-};
-
-/**
- * Decides which banner should be shown, and show it. This method is designed
- * to be called only from checkSpaceAndMaybeShowWelcomeBanner_.
- * @private
- */
-FileListBannerController.prototype.maybeShowWelcomeBanner_ = function() {
-  if (this.directoryModel_.getFileList().length == 0 &&
-      this.welcomeHeaderCounter_ == 0) {
-    // Only show the full page banner if the header banner was never shown.
-    // Do not increment the counter.
-    // The timeout below is required because sometimes another
-    // 'rescan-completed' event arrives shortly with non-empty file list.
-    setTimeout(function() {
-      if (this.isOnCurrentProfileDrive() && this.welcomeHeaderCounter_ == 0) {
-        this.prepareAndShowWelcomeBanner_('page', 'DRIVE_WELCOME_TEXT_LONG');
-      }
-    }.bind(this), 2000);
-  } else {
-    // We do not want to increment the counter when the user navigates
-    // between different directories on Drive, but we increment the counter
-    // once anyway to prevent the full page banner from showing.
-    if (!this.previousDirWasOnDrive_ || this.welcomeHeaderCounter_ == 0) {
-      this.setWelcomeHeaderCounter_(this.welcomeHeaderCounter_ + 1);
-      this.prepareAndShowWelcomeBanner_('header', 'DRIVE_WELCOME_TEXT_SHORT');
-    }
-  }
-  this.previousDirWasOnDrive_ = true;
-};
-
-/**
- * @return {boolean} True if current directory is on Drive root of current
- * profile.
- */
-FileListBannerController.prototype.isOnCurrentProfileDrive = function() {
-  var entry = this.directoryModel_.getCurrentDirEntry();
-  if (!entry || util.isFakeEntry(entry))
-    return false;
-  var locationInfo = this.volumeManager_.getLocationInfo(entry);
-  if (!locationInfo)
-    return false;
-  return locationInfo.rootType === VolumeManagerCommon.RootType.DRIVE &&
-         locationInfo.volumeInfo.profile.isCurrentProfile;
-};
-
-/**
- * Shows the Drive Welcome banner.
- * @param {string} type 'page'|'head'|'none'.
- * @private
- */
-FileListBannerController.prototype.showWelcomeBanner_ = function(type) {
-  var container = this.document_.querySelector('.dialog-container');
-  if (container.getAttribute('drive-welcome') != type) {
-    container.setAttribute('drive-welcome', type);
-    this.requestRelayout_(200);  // Resize only after the animation is done.
-  }
-};
-
-/**
- * Update the UI when the current directory changes.
- *
- * @param {Event} event The directory-changed event.
- * @private
- */
-FileListBannerController.prototype.onDirectoryChanged_ = function(event) {
-  var rootVolume = this.volumeManager_.getVolumeInfo(event.newDirEntry);
-  var previousRootVolume = event.previousDirEntry ?
-      this.volumeManager_.getVolumeInfo(event.previousDirEntry) : null;
-
-  // Show (or hide) the low space warning.
-  this.maybeShowLowSpaceWarning_(rootVolume);
-
-  // Add or remove listener to show low space warning, if necessary.
-  var isLowSpaceWarningTarget = this.isLowSpaceWarningTarget_(rootVolume);
-  if (isLowSpaceWarningTarget !==
-      this.isLowSpaceWarningTarget_(previousRootVolume)) {
-    if (isLowSpaceWarningTarget) {
-      chrome.fileManagerPrivate.onDirectoryChanged.addListener(
-          this.privateOnDirectoryChangedBound_);
-    } else {
-      chrome.fileManagerPrivate.onDirectoryChanged.removeListener(
-          this.privateOnDirectoryChangedBound_);
-    }
-  }
-
-  if (!this.isOnCurrentProfileDrive()) {
-    this.cleanupWelcomeBanner_();
-    this.authFailedBanner_.hidden = true;
-  }
-
-  this.updateDriveUnmountedPanel_();
-  if (this.isOnCurrentProfileDrive()) {
-    this.unmountedPanel_.classList.remove('retry-enabled');
-    this.maybeShowAuthFailBanner_();
-  }
-};
-
-/**
- * @param {VolumeInfo} volumeInfo Volume info to be checked.
- * @return {boolean} true if the file system specified by |root| is a target
- *     to show low space warning. Otherwise false.
- * @private
- */
-FileListBannerController.prototype.isLowSpaceWarningTarget_ =
-    function(volumeInfo) {
-  if (!volumeInfo)
-    return false;
-  return volumeInfo.profile.isCurrentProfile &&
-         (volumeInfo.volumeType === VolumeManagerCommon.VolumeType.DOWNLOADS ||
-          volumeInfo.volumeType === VolumeManagerCommon.VolumeType.DRIVE);
-};
-
-/**
- * Callback which is invoked when the file system has been changed.
- * @param {Object} event chrome.fileManagerPrivate.onDirectoryChanged event.
- * @private
- */
-FileListBannerController.prototype.privateOnDirectoryChanged_ = function(
-    event) {
-  if (!this.directoryModel_.getCurrentDirEntry())
-    return;
-
-  var currentDirEntry = this.directoryModel_.getCurrentDirEntry();
-  var currentVolume = currentDirEntry &&
-      this.volumeManager_.getVolumeInfo(currentDirEntry);
-  var eventVolume = this.volumeManager_.getVolumeInfo(event.entry);
-  if (currentVolume === eventVolume) {
-    // The file system we are currently on is changed.
-    // So, check the free space.
-    this.maybeShowLowSpaceWarning_(currentVolume);
-  }
-};
-
-/**
- * Shows or hides the low space warning.
- * @param {VolumeInfo} volume Type of volume, which we are interested in.
- * @private
- */
-FileListBannerController.prototype.maybeShowLowSpaceWarning_ = function(
-    volume) {
-  // TODO(kaznacheev): Unify the two low space warning.
-  var threshold = 0;
-  switch (volume.volumeType) {
-    case VolumeManagerCommon.VolumeType.DOWNLOADS:
-      this.showLowDriveSpaceWarning_(false);
-      threshold = 0.2;
-      break;
-    case VolumeManagerCommon.VolumeType.DRIVE:
-      this.showLowDownloadsSpaceWarning_(false);
-      threshold = 0.1;
-      break;
-    default:
-      // If the current file system is neither the DOWNLOAD nor the DRIVE,
-      // just hide the warning.
-      this.showLowDownloadsSpaceWarning_(false);
-      this.showLowDriveSpaceWarning_(false);
-      return;
-  }
-
-  // If not mounted correctly, then do not continue.
-  if (!volume.fileSystem)
-    return;
-
-  chrome.fileManagerPrivate.getSizeStats(
-      volume.volumeId,
-      function(sizeStats) {
-        var currentVolume = this.volumeManager_.getVolumeInfo(
-            this.directoryModel_.getCurrentDirEntry());
-        if (volume !== currentVolume) {
-          // This happens when the current directory is moved during requesting
-          // the file system size. Just ignore it.
-          return;
-        }
-        // sizeStats is undefined, if some error occurs.
-        if (!sizeStats || sizeStats.totalSize == 0)
-          return;
-
-        var remainingRatio = sizeStats.remainingSize / sizeStats.totalSize;
-        var isLowDiskSpace = remainingRatio < threshold;
-        if (volume.volumeType === VolumeManagerCommon.VolumeType.DOWNLOADS)
-          this.showLowDownloadsSpaceWarning_(isLowDiskSpace);
-        else
-          this.showLowDriveSpaceWarning_(isLowDiskSpace, sizeStats);
-      }.bind(this));
-};
-
-/**
- * removes the Drive Welcome banner.
- * @private
- */
-FileListBannerController.prototype.cleanupWelcomeBanner_ = function() {
-  this.showWelcomeBanner_('none');
-};
-
-/**
- * Notifies the file manager what layout must be recalculated.
- * @param {number} delay In milliseconds.
- * @private
- */
-FileListBannerController.prototype.requestRelayout_ = function(delay) {
-  var self = this;
-  setTimeout(function() {
-    cr.dispatchSimpleEvent(self, 'relayout');
-  }, delay);
-};
-
-/**
- * Show or hide the "Low disk space" warning.
- * @param {boolean} show True if the box need to be shown.
- * @private
- */
-FileListBannerController.prototype.showLowDownloadsSpaceWarning_ =
-    function(show) {
-  var box = this.document_.querySelector('.downloads-warning');
-
-  if (box.hidden == !show) return;
-
-  if (show) {
-    var html = util.htmlUnescape(str('DOWNLOADS_DIRECTORY_WARNING'));
-    box.innerHTML = html;
-    box.querySelector('a').addEventListener('click', function(e) {
-      util.visitURL(str('DOWNLOADS_LOW_SPACE_WARNING_HELP_URL'));
-      e.preventDefault();
-    });
-  } else {
-    box.innerHTML = '';
-  }
-
-  box.hidden = !show;
-  this.requestRelayout_(100);
-};
-
-/**
- * Creates contents for the DRIVE unmounted panel.
- * @private
- */
-FileListBannerController.prototype.ensureDriveUnmountedPanelInitialized_ =
-    function() {
-  var panel = this.unmountedPanel_;
-  if (panel.firstElementChild)
-    return;
-
-  /**
-   * Creates an element using given parameters.
-   * @param {!Element} parent Parent element of the new element.
-   * @param {string} tag Tag of the new element.
-   * @param {string} className Class name of the new element.
-   * @param {string=} opt_textContent Text content of the new element.
-   * @return {!Element} The newly created element.
-   */
-  var create = function(parent, tag, className, opt_textContent) {
-    var div = panel.ownerDocument.createElement(tag);
-    div.className = className;
-    div.textContent = opt_textContent || '';
-    parent.appendChild(div);
-    return div;
-  };
-
-  var loading = create(panel, 'div', 'loading', str('DRIVE_LOADING'));
-  var spinnerBox = create(loading, 'div', 'spinner-box');
-  create(spinnerBox, 'div', 'spinner');
-  create(panel, 'div', 'error', str('DRIVE_CANNOT_REACH'));
-
-  var learnMore = create(panel, 'a', 'learn-more plain-link',
-                         str('DRIVE_LEARN_MORE'));
-  learnMore.href = str('GOOGLE_DRIVE_ERROR_HELP_URL');
-  learnMore.target = '_blank';
-};
-
-/**
- * Called when volume info list is updated.
- * @param {Event} event Splice event data on volume info list.
- * @private
- */
-FileListBannerController.prototype.onVolumeInfoListSplice_ = function(event) {
-  var isDriveVolume = function(volumeInfo) {
-    return volumeInfo.volumeType === VolumeManagerCommon.VolumeType.DRIVE;
-  };
-  if (event.removed.some(isDriveVolume) || event.added.some(isDriveVolume))
-    this.updateDriveUnmountedPanel_();
-};
-
-/**
- * Shows the panel when current directory is DRIVE and it's unmounted.
- * Hides it otherwise. The panel shows spinner if DRIVE is mounting or
- * an error message if it failed.
- * @private
- */
-FileListBannerController.prototype.updateDriveUnmountedPanel_ = function() {
-  var node = this.document_.body;
-  if (this.isOnCurrentProfileDrive()) {
-    var driveVolume = this.volumeManager_.getCurrentProfileVolumeInfo(
-        VolumeManagerCommon.VolumeType.DRIVE);
-    if (driveVolume && driveVolume.error) {
-      this.ensureDriveUnmountedPanelInitialized_();
-      this.unmountedPanel_.classList.add('retry-enabled');
-    } else {
-      this.unmountedPanel_.classList.remove('retry-enabled');
-    }
-    node.setAttribute('drive', status);
-  } else {
-    node.removeAttribute('drive');
-  }
-};
-
-/**
- * Updates the visibility of Drive Connection Warning banner, retrieving the
- * current connection information.
- * @private
- */
-FileListBannerController.prototype.maybeShowAuthFailBanner_ = function() {
-  var connection = this.volumeManager_.getDriveConnectionState();
-  var showDriveNotReachedMessage =
-      this.isOnCurrentProfileDrive() &&
-      connection.type == VolumeManagerCommon.DriveConnectionType.OFFLINE &&
-      connection.reason == VolumeManagerCommon.DriveConnectionReason.NOT_READY;
-  this.authFailedBanner_.hidden = !showDriveNotReachedMessage;
-};