Initialize V8 in PDFium from external files (plugin process only)

ppapi/BUILD.gn

 # Copyright 2014 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.
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("ppapi_sources.gypi") ],
     "scope",
     [ "ppapi_sources.gypi" ])
 
@@ skipping 720 matching lines @@
   }
 
   defines = [ "PPAPI_PROXY_IMPLEMENTATION" ]
 
   deps = [
     ":ppapi_c",
     ":ppapi_shared",
     ":ppapi_ipc",
     "//base",
     "//base/third_party/dynamic_annotations",
+    "//gin",
     "//gpu/command_buffer/client:gles2_implementation",
     "//gpu/ipc",
     "//media:shared_memory_support",
     "//ipc",
     "//skia",
     "//third_party/icu",
     "//ui/events:events_base",
     "//ui/surface",
     blink_target,
   ]
@@ skipping 60 matching lines @@
     ":ppapi_shared",
     "//base/test:test_support",
     "//ipc",
     "//ipc:test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }
 
 # TODO(GYP) other targets from ppapi_tests.gyp