[Device Service] Decouple NFC implementation from //content

content/public/android/java/src/org/chromium/content/browser/NfcFactory.java

Index: content/public/android/java/src/org/chromium/content/browser/NfcFactory.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/NfcFactory.java b/content/public/android/java/src/org/chromium/content/browser/NfcFactory.java
deleted file mode 100644
index 35268c12c7f2624e0cdc402df93e07f98a314b40..0000000000000000000000000000000000000000
--- a/content/public/android/java/src/org/chromium/content/browser/NfcFactory.java
+++ /dev/null
@@ -1,61 +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.content.browser;
-
-import android.app.Activity;
-
-import org.chromium.content_public.browser.WebContents;
-import org.chromium.device.nfc.NfcImpl;
-import org.chromium.device.nfc.mojom.Nfc;
-import org.chromium.services.service_manager.InterfaceFactory;
-import org.chromium.ui.base.WindowAndroid;
-
-class NfcFactory implements InterfaceFactory<Nfc> {
-    private final WebContents mContents;
-
-    NfcFactory(WebContents contents) {
-        mContents = contents;
-    }
-
-    private static class ContextAwareNfcImpl
-            extends NfcImpl implements WindowAndroidChangedObserver {
-        private final ContentViewCore mContentViewCore;
-
-        ContextAwareNfcImpl(ContentViewCore contentViewCore) {
-            super(contentViewCore.getContext().getApplicationContext());
-            mContentViewCore = contentViewCore;
-            mContentViewCore.addWindowAndroidChangedObserver(this);
-            if (mContentViewCore.getWindowAndroid() != null) {
-                setActivity(mContentViewCore.getWindowAndroid().getActivity().get());
-            }
-        }
-
-        @Override
-        public void close() {
-            super.close();
-            if (mContentViewCore != null) {
-                mContentViewCore.removeWindowAndroidChangedObserver(this);
-            }
-        }
-
-        @Override
-        public void onWindowAndroidChanged(WindowAndroid newWindowAndroid) {
-            Activity activity = null;
-            if (newWindowAndroid != null) {
-                activity = newWindowAndroid.getActivity().get();
-            }
-            setActivity(activity);
-        }
-    }
-
-    @Override
-    public Nfc createImpl() {
-        ContentViewCore contentViewCore = ContentViewCore.fromWebContents(mContents);
-        if (contentViewCore == null) {
-            return null;
-        }
-        return new ContextAwareNfcImpl(contentViewCore);
-    }
-}