Minor changes to allow Pepper InstancePrivate tests to pass with gin

content/content_tests.gypi

 # 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.
 
 {
   'variables': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 341 matching lines @@
       'target_name': 'content_unittests',
       'type': '<(gtest_target_type)',
       'dependencies': [
         'browser/service_worker/service_worker_proto.gyp:proto',
         'browser/speech/proto/speech_proto.gyp:speech_proto',
         'content.gyp:content_browser',
         'content.gyp:content_common',
         'test_support_content',
         '../base/base.gyp:test_support_base',
         '../crypto/crypto.gyp:crypto',
+        '../gin/gin.gyp:gin',
         '../net/net.gyp:net_test_support',
         '../skia/skia.gyp:skia',
         '../sql/sql.gyp:sql',
         '../sql/sql.gyp:test_support_sql',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../third_party/re2/re2.gyp:re2',
         '../ui/accessibility/accessibility.gyp:accessibility',
         '../ui/base/ui_base.gyp:ui_base',
         '../ui/gfx/gfx.gyp:gfx',
@@ skipping 1495 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }