Revert of Credit card editor for PaymentRequest UI.

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java
index 46db419f338890632b16c8acadc4186d65f3c301..c853391e2b1f990cfb5ed8e9ca81d463dae34e98 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorDropdownField.java
@@ -7,8 +7,6 @@
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
-import android.view.accessibility.AccessibilityEvent;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemSelectedListener;
 import android.widget.ArrayAdapter;
@@ -23,7 +21,7 @@
 /**
  * Helper class for creating a dropdown view with a label.
  */
-class EditorDropdownField implements Validatable {
+class EditorDropdownField {
     private final EditorFieldModel mFieldModel;
     private final View mLayout;
     private final TextView mLabel;
@@ -34,23 +32,20 @@
      * Builds a dropdown view.
      *
      * @param context         The application context to use when creating widgets.
-     * @param root            The object that provides a set of LayoutParams values for the view.
      * @param fieldModel      The data model of the dropdown.
      * @param changedCallback The callback to invoke after user's dropdwn item selection has been
      *                        processed.
      */
-    public EditorDropdownField(Context context, ViewGroup root, final EditorFieldModel fieldModel,
+    public EditorDropdownField(Context context, final EditorFieldModel fieldModel,
             final Runnable changedCallback) {
         assert fieldModel.getInputTypeHint() == EditorFieldModel.INPUT_TYPE_HINT_DROPDOWN;
         mFieldModel = fieldModel;
 
         mLayout = LayoutInflater.from(context).inflate(
-                R.layout.payment_request_editor_dropdown, root, false);
+                R.layout.payment_request_editor_dropdown, null, false);
 
         mLabel = (TextView) mLayout.findViewById(R.id.spinner_label);
-        mLabel.setText(mFieldModel.isRequired()
-                ? mFieldModel.getLabel() + EditorView.REQUIRED_FIELD_INDICATOR
-                : mFieldModel.getLabel());
+        mLabel.setText(mFieldModel.getLabel());
 
         final List<DropdownKeyValue> dropdownKeyValues = mFieldModel.getDropdownKeyValues();
         for (int j = 0; j < dropdownKeyValues.size(); j++) {
@@ -65,7 +60,6 @@
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 
         mDropdown = (Spinner) mLayout.findViewById(R.id.spinner);
-        mDropdown.setTag(this);
         mDropdown.setContentDescription(mFieldModel.getLabel());
         mDropdown.setAdapter(adapter);
         mDropdown.setSelection(mSelectedIndex);
@@ -100,29 +94,7 @@
     }
 
     /** @return The dropdown view itself. */
-    public Spinner getDropdown() {
+    public View getDropdown() {
         return mDropdown;
     }
-
-    @Override
-    public boolean isValid() {
-        return mFieldModel.isValid();
-    }
-
-    @Override
-    public void updateDisplayedError(boolean showError) {
-        View view = mDropdown.getSelectedView();
-        if (view != null && view instanceof TextView) {
-            ((TextView) view).setError(showError ? mFieldModel.getErrorMessage() : null);
-        }
-    }
-
-    @Override
-    public void scrollToAndFocus() {
-        ViewGroup parent = (ViewGroup) mDropdown.getParent();
-        if (parent != null) parent.requestChildFocus(mDropdown, mDropdown);
-        // Open the dropdown to prompt user selection.
-        mDropdown.performClick();
-        mDropdown.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED);
-    }
 }