[Android] Adding Smart GO/NEXT feature in Chrome

content/public/android/javatests/src/org/chromium/content/browser/input/ImeActivityTestRule.java

 // Copyright 2017 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.annotation.TargetApi;
 import android.app.Activity;
 import android.content.ClipData;
 import android.content.ClipboardManager;
@@ skipping 179 matching lines @@
         int restartCount = mInputMethodManagerWrapper.getRestartInputCounter();
         Integer[] history = mConnectionFactory.getTextInputTypeHistory();
         return stringifyKeyboardStates(showCount, hideCount, restartCount, history);
     }
 
     String stringifyKeyboardStates(int show, int hide, int restart, Integer[] history) {
         return "show count: " + show + ", hide count: " + hide + ", restart count: " + restart
                 + ", input type history: " + Arrays.deepToString(history);
     }
 
+    void performEditorAction(final int action) {
+        final InputConnection inputConnection = mConnection;
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                inputConnection.performEditorAction(action);
+            }
+        });
+    }
+
     void performGo(TestCallbackHelperContainer testCallbackHelperContainer) throws Throwable {
         final InputConnection inputConnection = mConnection;
         final Callable<Void> callable = new Callable<Void>() {
             @Override
             public Void call() throws Exception {
                 inputConnection.performEditorAction(EditorInfo.IME_ACTION_GO);
                 return null;
             }
         };
 
@@ skipping 397 matching lines @@
         public void onViewAttachedToWindow() {
             mFactory.onViewAttachedToWindow();
         }
 
         @Override
         public void onViewDetachedFromWindow() {
             mFactory.onViewDetachedFromWindow();
         }
     }
 }