Refactor OverlayPanel height calculations

chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/ReaderModeManagerDelegate.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.dom_distiller;
 
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.compositor.bottombar.OverlayPanel.StateChangeReason;
 import org.chromium.chrome.browser.compositor.bottombar.readermode.ReaderModePanel;
 import org.chromium.content_public.browser.WebContents;
@@ skipping 47 matching lines @@
      */
     ChromeActivity getChromeActivity();
 
     /**
      * Record the amount of time that a user spent in the Reader Mode panel.
      * @param timeInMs The amount of time spent in ms.
      */
     void recordTimeSpentInReader(long timeInMs);
 
     /**
-     * Notification that the size of the view has changed.
+     * Notification that the layout has changed.
      */
-    void onSizeChanged();
+    void onLayoutChanged();
 }