[Merge M-53] Credit card editor for PaymentRequest UI.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillLocalCardEditor.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillLocalCardEditor.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillLocalCardEditor.java
index 9971acc9941d6e66c9c1adb6ad6862f2672baf8a..8c642db4c17b4606ff57c9b54516f8b0cae0841e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillLocalCardEditor.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillLocalCardEditor.java
@@ -5,9 +5,7 @@
 package org.chromium.chrome.browser.preferences.autofill;
 
 import android.os.Bundle;
-import android.text.Editable;
 import android.text.TextUtils;
-import android.text.TextWatcher;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -197,94 +195,4 @@ public class AutofillLocalCardEditor extends AutofillCreditCardEditor {
                 || !TextUtils.isEmpty(mNumberText.getText());
         ((Button) getView().findViewById(R.id.button_primary)).setEnabled(enabled);
     }
-
-    /**
-     * 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.
-     */
-    private static 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;
-        }
-    }
 }