PaymentRequest: Rename ContactInfo to PayerInfo.

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorModel.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.chrome.browser.payments.ui;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import javax.annotation.Nullable;
 
 /**
- * Representation of an editor layout. Can be used, for example, to edit contact information.
+ * Representation of an editor layout. Can be used, for example, to edit payer information.
  */
 public class EditorModel {
     private final String mTitle;
     private final List<EditorFieldModel> mFields;
     @Nullable private Runnable mDoneCallback;
     @Nullable private Runnable mCancelCallback;
 
     /**
      * Constructs an editor model.
      *
@@ skipping 61 matching lines @@
     /**
      * Called when the user clicks "Cancel." Can be called only once. If this method is called, then
      * done() should not be called.
      */
     public void cancel() {
         if (mCancelCallback != null) mCancelCallback.run();
         mDoneCallback = null;
         mCancelCallback = null;
     }
 }