Hide Chrome actions in notifications shown for WebAPKs

chrome/android/java/src/org/chromium/chrome/browser/notifications/CustomNotificationBuilder.java

 // Copyright 2015 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.notifications;
 
 import android.app.Notification;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
@@ skipping 214 matching lines @@
             }
 
             view.setTextViewText(R.id.button, action.title);
             view.setOnClickPendingIntent(R.id.button, action.intent);
             bigView.addView(R.id.buttons, view);
         }
     }
 
     private void configureSettingsButton(RemoteViews bigView) {
         if (mSettingsAction == null) {
+            bigView.setViewVisibility(R.id.origin_settings_icon, View.GONE);
+            int padding =
+                    dpToPx(BUTTON_ICON_PADDING_DP, mContext.getResources().getDisplayMetrics());
+            bigView.setViewPadding(R.id.origin, padding, 0, padding, 0);

[Peter Beverloo, 2017/04/20 19:08:29]

Hmmm could you make a screenshot of what you see? I think I may've been wrong -
there's still too much padding being applied.

https://screenshot.googleplex.com/zEKSvdqChFE

We have two SDK versions we need to verify: 21 (L) and 17 (JB). It might well be
that the needed padding differs for them :/.

[Xi Han, 2017/04/20 20:14:20]

Change the padding to 0, 0, 8, 0. Only leave the padding on the right side of
the button.

             return;
         }
         bigView.setOnClickPendingIntent(R.id.origin, mSettingsAction.intent);
         if (useMaterial()) {
             bigView.setInt(R.id.origin_settings_icon, "setColorFilter", BUTTON_ICON_COLOR_MATERIAL);
         }
     }
 
     /**
      * Shows the work profile badge if it is needed.
@@ skipping 72 matching lines @@
     }
 
     /**
      * Whether to use the Material look and feel or fall back to Holo.
      */
     @VisibleForTesting
     static boolean useMaterial() {
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
     }
 }