Expand bottom sheet when URL bar is focused

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarPhone.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 android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
@@ skipping 1739 matching lines @@
 
         TransitionDrawable shadowDrawable = (TransitionDrawable) mToolbarShadow.getDrawable();
         if (hasFocus) {
             dismissTabSwitcherCallout();
             shadowDrawable.startTransition(URL_FOCUS_CHANGE_ANIMATION_DURATION_MS);
         } else {
             shadowDrawable.reverseTransition(URL_FOCUS_CHANGE_ANIMATION_DURATION_MS);
         }
     }
 
-    private void triggerUrlFocusAnimation(final boolean hasFocus) {
+    protected void triggerUrlFocusAnimation(final boolean hasFocus) {
         if (mUrlFocusLayoutAnimator != null && mUrlFocusLayoutAnimator.isRunning()) {
             mUrlFocusLayoutAnimator.cancel();
             mUrlFocusLayoutAnimator = null;
         }
 
         List<Animator> animators = new ArrayList<>();
         if (hasFocus) {
             populateUrlFocusingAnimatorSet(animators);
         } else {
             populateUrlClearFocusingAnimatorSet(animators);
@@ skipping 467 matching lines @@
         });
 
         if (mControlsVisibilityDelegate != null) {
             mFullscreenCalloutToken =
                     mControlsVisibilityDelegate.showControlsPersistentAndClearOldToken(
                             mFullscreenCalloutToken);
         }
     }
 }