[Andorid] ClipDrawable progress bar experiment.

chrome/android/java/src/org/chromium/chrome/browser/widget/ToolbarProgressBar.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.widget;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.content.Context;
@@ skipping 110 matching lines @@
             for (int i = 0; i < ld.getNumberOfLayers(); i++) {
                 ld.getDrawable(i).setBounds(currentDrawable.getBounds());
             }
         }
     }
 
     /**
      * @return Whether or not this progress bar has animations running for showing/hiding itself.
      */
     @VisibleForTesting
-    boolean isAnimatingForShowOrHide() {
+    public boolean isAnimatingForShowOrHide() {
         return (mShowAnimator != null && mShowAnimator.isStarted())
                 || (mHideAnimator != null && mHideAnimator.isStarted());
     }
 
     private void buildAnimators() {
         if (mShowAnimator != null && mShowAnimator.isRunning()) mShowAnimator.end();
         if (mHideAnimator != null && mHideAnimator.isRunning()) mHideAnimator.end();
 
         mShowAnimator = ObjectAnimator.ofFloat(this, View.SCALE_Y, 0.f, 1.f);
         mShowAnimator.setDuration(SHOW_HIDE_DURATION_MS);
@@ skipping 35 matching lines @@
             if (mHideAnimator.isRunning()) mHideAnimator.end();
 
             if (willShow) {
                 mShowAnimator.start();
             } else {
                 mHideAnimator.start();
             }
         }
     }
 }