Fix NFC crasher from accessing a destroyed activity.

tools/android/eclipse/.classpath

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- {% block header_message %}
 
 Eclipse classpath. See instructions at
 https://www.chromium.org/developers/android-eclipse-dev for setting up Eclipse
 for Chrome Android development.
 
 Obsolete entries can be found using:
 
   for f in $(grep -oP '(?<= path=")[^"]*' tools/android/eclipse/.classpath); do
@@ skipping 58 matching lines @@
     <classpathentry kind="src" path="content/public/test/android/javatests/src"/>
     <classpathentry kind="src" path="content/shell/android/browsertests/src"/>
     <classpathentry kind="src" path="content/shell/android/browsertests_apk/src"/>
     <classpathentry kind="src" path="content/shell/android/java/src"/>
     <classpathentry kind="src" path="content/shell/android/javatests/src"/>
     <classpathentry kind="src" path="content/shell/android/linker_test_apk/src"/>
     <classpathentry kind="src" path="content/shell/android/shell_apk/src"/>
     <classpathentry kind="src" path="device/battery/android/java/src"/>
     <classpathentry kind="src" path="device/bluetooth/android/java/src"/>
     <classpathentry kind="src" path="device/gamepad/android/java/src"/>
+    <classpathentry kind="src" path="device/nfc/android/java/src"/>
     <classpathentry kind="src" path="device/usb/android/java/src"/>
     <classpathentry kind="src" path="device/vibration/android/java/src"/>
     <classpathentry kind="src" path="media/base/android/java/src"/>
     <classpathentry kind="src" path="mojo/android/system/src"/>
     <classpathentry kind="src" path="mojo/android/javatests/src"/>
     <classpathentry kind="src" path="mojo/public/java/bindings/src"/>
     <classpathentry kind="src" path="mojo/public/java/system/src"/>
     <classpathentry kind="src" path="net/android/java/src"/>
     <classpathentry kind="src" path="net/android/javatests/src"/>
     <classpathentry kind="src" path="net/test/android/javatests/src"/>
@@ skipping 154 matching lines @@
     <classpathentry kind="lib" path="out/Debug/lib.java/components/precache/android/precache_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/components/safe_json/android/safe_json_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/components/service_tab_launcher/service_tab_launcher_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/components/signin/core/browser/android/java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/components/variations/android/variations_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/components/web_contents_delegate_android/web_contents_delegate_android_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/content/public/android/content_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/device/battery/android/battery_monitor_android.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/device/battery/mojo_bindings_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/device/bluetooth/java.jar"/>
+    <classpathentry kind="lib" path="out/Debug/lib.java/device/nfc/mojo_bindings_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/device/vibration/android/vibration_manager_android.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/device/vibration/mojo_bindings_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/media/base/android/media_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/media/midi/midi_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/mojo/android/system_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/mojo/public/java/bindings.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/mojo/public/java/system.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/net/android/net_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/printing/printing_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/sync/android/sync_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/sync/test_support_sync_proto_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/android_data_chart/android_data_chart_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/android_media/android_media_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/android_protobuf/protobuf_nano_javalib.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/android_swipe_refresh/android_swipe_refresh_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/cacheinvalidation/cacheinvalidation_javalib.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/cacheinvalidation/cacheinvalidation_proto_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/cardboard-java/cardboard-java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/gif_player/gif_player_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/third_party/WebKit/public/blink_headers_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/ui/accessibility/ui_accessibility_java.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/ui/android/ui_java.jar"/>
 
     <!-- {% block additional_entries %} -->
     <!-- When this file is processed as a jinja2 template, additional
          <classpathentry> elements will be inserted here. -->
     <!-- {% endblock %} -->
 
 </classpath>