Implementation of Smart GO NEXT feature in Android Chrome

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

 // Copyright 2012 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.content.res.Configuration;
 import android.os.Handler;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
@@ skipping 591 matching lines @@
     /**
      * Send a request to the native counterpart of ImeAdapter to paste the text from the clipboard.
      * @return Whether the native counterpart of ImeAdapter received the call.
      */
     public boolean paste() {
         if (mNativeImeAdapterAndroid == 0) return false;
         nativePaste(mNativeImeAdapterAndroid);
         return true;
     }
 
+    /**
+     * Advances the focus to next input field in the current form.
+     *
+     * @param forward indicates whether to advance forward or backward direction.
+     */
+    public void advanceFocusInForm(boolean forward) {
+        if (mNativeImeAdapterAndroid == 0) return;
+        nativeAdvanceFocusInForm(mNativeImeAdapterAndroid, forward);
+    }
+
     // Calls from C++ to Java
 
     @CalledByNative
     private void focusedNodeChanged(boolean isEditable) {
         if (mInputConnection != null && isEditable) mInputConnection.restartInput();
     }
 
     @CalledByNative
     private void populateUnderlinesFromSpans(CharSequence text, long underlines) {
         if (!(text instanceof SpannableString)) return;
@@ skipping 54 matching lines @@
 
     private native void nativeDeleteSurroundingText(long nativeImeAdapterAndroid,
             int before, int after);
 
     private native void nativeUnselect(long nativeImeAdapterAndroid);
     private native void nativeSelectAll(long nativeImeAdapterAndroid);
     private native void nativeCut(long nativeImeAdapterAndroid);
     private native void nativeCopy(long nativeImeAdapterAndroid);
     private native void nativePaste(long nativeImeAdapterAndroid);
     private native void nativeResetImeAdapter(long nativeImeAdapterAndroid);
+    private native void nativeAdvanceFocusInForm(long nativeImeAdapterAndroid, boolean forward);
 }