Fix leaks in InputConnectionHandlerThread

content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnection.java

 // Copyright 2016 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.content.browser.input;
 
 import android.os.Handler;
 import android.view.KeyEvent;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
@@ skipping 13 matching lines @@
                 int inputType, int inputFlags, int inputMode, int selectionStart, int selectionEnd,
                 EditorInfo outAttrs);
 
         @VisibleForTesting
         Handler getHandler();
 
         void onWindowFocusChanged(boolean gainFocus);
         void onViewFocusChanged(boolean gainFocus);
         void onViewAttachedToWindow();
         void onViewDetachedFromWindow();
+        void destroy();
     }
 
     /**
      * Updates the internal representation of the text being edited and its selection and
      * composition properties.
      *
      * @param text The String contents of the field being edited.
      * @param selectionStart The character offset of the selection start, or the caret position if
      *                       there is no selection.
      * @param selectionEnd The character offset of the selection end, or the caret position if there
@@ skipping 28 matching lines @@
      * Move cursor to the end of the current selection.
      */
     void moveCursorToSelectionEndOnUiThread();
 
     /**
      * Unblock thread function if needed, e.g. we found that we will
      * never get state update.
      */
     void unblockOnUiThread();
 }