[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 45 matching lines @@
                 return states.size() > index;
             }
         });
         Pair<Range, Range> selection = states.get(index);
         Assert.assertEquals(selectionStart, selection.first.start());
         Assert.assertEquals(selectionEnd, selection.first.end());
         Assert.assertEquals(compositionStart, selection.second.start());
         Assert.assertEquals(compositionEnd, selection.second.end());
     }
 
     void resetUpdateSelectionList() {

[Changwan Ryu, 2017/05/11 22:57:12]

Previously we only clear selection list in setUp() and other places, and you'll
encounter test failure because mEditorInfoList won't be cleared correctly.

Please remove this function and change all references to resetAllStates().

[AKVT, 2017/05/12 13:26:25]

Done.

         mInputMethodManagerWrapper.getUpdateSelectionList().clear();
     }
 
     void assertClipboardContents(final Activity activity, final String expectedContents) {
         CriteriaHelper.pollUiThread(new Criteria() {
             @Override
             public boolean isSatisfied() {
                 ClipboardManager clipboardManager =
                         (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
                 ClipData clip = clipboardManager.getPrimaryClip();
@@ skipping 331 matching lines @@
         public void onViewAttachedToWindow() {
             mFactory.onViewAttachedToWindow();
         }
 
         @Override
         public void onViewDetachedFromWindow() {
             mFactory.onViewDetachedFromWindow();
         }
     }
 }