Remove the assumption that test_pdf.cc is not sandboxed.

ppapi/ppapi_tests.gypi

 # Copyright (c) 2012 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.
 
 {
   'targets': [
     {
       'target_name': 'ppapi_tests',
       'type': 'loadable_module',
       'include_dirs': [
         'lib/gl/include',
       ],
       'defines': [
         'GL_GLEXT_PROTOTYPES',
       ],
       'sources': [
         '<@(test_common_source_files)',
         '<@(test_trusted_source_files)',
       ],
       'dependencies': [
-        '../gin/gin.gyp:gin',
         'ppapi.gyp:ppapi_cpp',
         'ppapi_internal.gyp:ppapi_shared',
       ],
       'copies': [
         {
           'destination': '<(PRODUCT_DIR)',
           'files': [
             # Keep 'test_case.html.mock-http-headers' with 'test_case.html'.
             'tests/test_case.html',
             'tests/test_case.html.mock-http-headers',
@@ skipping 552 matching lines @@
         'lib/gl/include',
       ],
       'sources': [
         'examples/compositor/compositor.cc',
         'examples/compositor/spinning_cube.cc',
         'examples/compositor/spinning_cube.h',
       ],
     },
   ],
 }