Revert of Credit card editor for PaymentRequest UI.

chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/CreditCardNumberFormattingTextWatcher.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/CreditCardNumberFormattingTextWatcher.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/CreditCardNumberFormattingTextWatcher.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/CreditCardNumberFormattingTextWatcher.java
deleted file mode 100644
index 42b98e894b241603062d2edaf6ae216eb60a41ae..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/CreditCardNumberFormattingTextWatcher.java
+++ /dev/null
@@ -1,99 +0,0 @@
-// 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.preferences.autofill;
-
-import android.text.Editable;
-import android.text.TextUtils;
-import android.text.TextWatcher;
-
-/**
- * Watch a TextView and if a credit card number is entered, it will format the number.
- * Disable formatting when user:
- * 1. Inputs dashes or spaces.
- * 2. Removes separators in the middle of the string
- * 3. Enters a number longer than 16 digits.
- *
- * Formatting will be re-enabled once text is cleared.
- */
-public class CreditCardNumberFormattingTextWatcher implements TextWatcher {
-    /** Character for card number section separator. */
-    private static final String SEPARATOR = " ";
-
-    /**
-     * Whether to format the credit card number. If true, spaces will be inserted
-     * automatically between each group of 4 digits in the credit card number as the user types.
-     * This is set to false if the user types a dash or deletes one of the auto-inserted spaces.
-     */
-    private boolean mFormattingEnabled = true;
-
-    /**
-     * Whether the change was caused by ourselves.
-     * This is set true when we are manipulating the text of EditText,
-     * and all callback functions should check this boolean to avoid infinite recursion.
-     */
-    private boolean mSelfChange = false;
-
-    @Override
-    public void onTextChanged(CharSequence s, int start, int before, int count) {
-        if (mSelfChange || !mFormattingEnabled) return;
-        // If user enters non-digit characters, do not format.
-        if (count > 0 && hasDashOrSpace(s, start, count)) {
-            mFormattingEnabled = false;
-        }
-    }
-
-    @Override
-    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-        if (mSelfChange || !mFormattingEnabled) return;
-        // If user deletes non-digit characters, do not format.
-        if (count > 0 && hasDashOrSpace(s, start, count)) {
-            mFormattingEnabled = false;
-        }
-    }
-
-    @Override
-    public void afterTextChanged(Editable s) {
-        if (mSelfChange) return;
-        mSelfChange = true;
-
-        if (mFormattingEnabled) {
-            removeSeparators(s);
-            // If number is too long, do not format it and remove all
-            // previous separators.
-            if (s.length() > 16) {
-                mFormattingEnabled = false;
-            } else {
-                insertSeparators(s);
-            }
-        }
-        // If user clears the input, re-enable formatting
-        if (s.length() == 0) mFormattingEnabled = true;
-
-        mSelfChange = false;
-    }
-
-    public static void removeSeparators(Editable s) {
-        int index = TextUtils.indexOf(s, SEPARATOR);
-        while (index >= 0) {
-            s.delete(index, index + 1);
-            index = TextUtils.indexOf(s, SEPARATOR, index + 1);
-        }
-    }
-
-    public static void insertSeparators(Editable s) {
-        final int[] positions = {4, 9, 14 };
-        for (int i : positions) {
-            if (s.length() > i) {
-                s.insert(i, SEPARATOR);
-            }
-        }
-    }
-
-    public static boolean hasDashOrSpace(final CharSequence s, final int start,
-            final int count) {
-        return TextUtils.indexOf(s, " ", start, start + count) != -1
-                || TextUtils.indexOf(s, "-", start, start + count) != -1;
-    }
-}