Don't keep the lazy background page alive after a view with a Pepper plugin is closed

ppapi/tests/extensions/extensions.gyp

 # Copyright (c) 2013 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.
 
 {
   'includes': [
     '../../../ppapi/ppapi_nacl_test_common.gypi',
   ],
   'targets': [
     {
@@ skipping 264 matching lines @@
             'enable_x86_32_nonsfi': 1,
           },
         }],
       ],
       # Shim is a dependency for the nexe because we pre-translate.
       'dependencies': [
         '<(DEPTH)/ppapi/native_client/src/untrusted/pnacl_irt_shim/pnacl_irt_shim.gyp:aot',
       ],
     },
     {
+      'target_name': 'ppapi_tests_extensions_popup',
+      'type': 'none',
+      'variables': {
+        'nexe_target': 'ppapi_tests_extensions_popup',
+        # Only newlib build is used in tests, no need to build others.
+        'build_newlib': 1,
+        'build_glibc': 0,
+        'build_pnacl_newlib': 0,
+        'nexe_destination_dir': 'test_data/ppapi/tests/extensions/popup',
+        'sources': [
+          'popup/module.cc',
+        ],
+        'test_files': [
+          'popup/background.js',
+          'popup/popup.html',
+          'popup/popup.js',
+          'popup/manifest.json',
+        ],
+      },
+    },
+    {
       'target_name': 'ppapi_tests_extensions_socket_permissions',
       'type': 'none',
       'variables': {
         'nexe_target': 'ppapi_tests_extensions_socket_permissions',
         # Only newlib build is used in tests, no need to build others.
         'build_newlib': 1,
         'build_glibc': 0,
         'build_pnacl_newlib': 0,
         'nexe_destination_dir': 'test_data/ppapi/tests/extensions/socket_permissions',
         'sources': [
           'socket_permissions/test_socket_permissions.cc',
         ],
         'test_files': [
           'socket_permissions/controller.js',
           'socket_permissions/index.html',
           'socket_permissions/main.js',
           'socket_permissions/manifest.json',
         ],
       },
     },
   ],
 }