Make FadingEdgeScrollView more generic

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorView.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 android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
@@ skipping 26 matching lines @@
 
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.autofill.PhoneNumberUtil;
 import org.chromium.chrome.browser.customtabs.CustomTabActivity;
 import org.chromium.chrome.browser.payments.ui.PaymentRequestUI.PaymentRequestObserverForTest;
 import org.chromium.chrome.browser.preferences.autofill.CreditCardNumberFormattingTextWatcher;
 import org.chromium.chrome.browser.widget.AlwaysDismissedDialog;
 import org.chromium.chrome.browser.widget.DualControlLayout;
+import org.chromium.chrome.browser.widget.FadingEdgeScrollView;
 import org.chromium.chrome.browser.widget.FadingShadow;
 import org.chromium.chrome.browser.widget.FadingShadowView;
 import org.chromium.ui.UiUtils;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 
 import javax.annotation.Nullable;
 
@@ skipping 133 matching lines @@
         });
 
         // Make it appear that the toolbar is floating by adding a shadow.
         FadingShadowView shadow = (FadingShadowView) mLayout.findViewById(R.id.shadow);
         shadow.init(ApiCompatibilityUtils.getColor(mContext.getResources(),
                 R.color.toolbar_shadow_color), FadingShadow.POSITION_TOP);
 
         // The top shadow is handled by the toolbar, so hide the one used in the field editor.
         FadingEdgeScrollView scrollView =
                 (FadingEdgeScrollView) mLayout.findViewById(R.id.scroll_view);
-        scrollView.setShadowVisibility(false, true);
+        scrollView.setEdgeVisibility(
+                FadingEdgeScrollView.DRAW_NO_EDGE, FadingEdgeScrollView.DRAW_FADING_EDGE);
     }
 
     /**
      * Checks if all of the fields in the form are valid and updates the displayed errors. If there
      * are any invalid fields, makes sure that one of them is focused. Called when user taps [SAVE].
      *
      * @return Whether all fields contain valid information.
      */
     private boolean validateForm() {
         final List<EditorFieldView> invalidViews = getViewsWithInvalidInformation(true);
@@ skipping 329 matching lines @@
     public List<EditText> getEditableTextFieldsForTest() {
         return mEditableTextFields;
     }
 
     /** @return All dropdown fields in the editor. Used only for tests. */
     @VisibleForTesting
     public List<Spinner> getDropdownFieldsForTest() {
         return mDropdownFields;
     }
 }