Revert of [Andorid] Migrate to ClipDrawable progress bar.

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarDataProvider.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.toolbar;
 
+import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.ntp.NewTabPage;
 
 /**
  * Defines the data that is exposed to properly render the Toolbar.
  */
 public interface ToolbarDataProvider {
     /**
      * @return The tab that contains the information currently displayed in the toolbar.
      */
     Tab getTab();
 
     /**
      * @return The NewTabPage shown for the current Tab or null if one is not being shown.
      */
     NewTabPage getNewTabPageForCurrentTab();
 
     /**
      * @return Whether the toolbar is currently being displayed for incognito.
      */
     boolean isIncognito();
 
     /**
+     * @return The load progress for the current tab (0 being no load progress, 100 being
+     *         fully loaded).
+     */
+    @VisibleForTesting
+    int getLoadProgress();
+
+    /**
      * @return The chip text from the search URL.
      */
     String getCorpusChipText();
 
     /**
      * @return The formatted text (URL or search terms) for display.
      */
     String getText();
 
     /**
      * @return Whether the text to display is a search query replacing the URL.
      */
     boolean wouldReplaceURL();
 
     /**
      * @return The primary color to use for the background drawable.
      */
     int getPrimaryColor();
 
     /**
      * @return Whether the current primary color is a brand color.
      */
     boolean isUsingBrandColor();
 }