Add to GN ppapi build.

content/renderer/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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//content/renderer/renderer.gni")
 
 source_set("renderer") {
   # Only targets in the content tree can depend directly on this target.
@@ skipping 132 matching lines @@
       "media/webrtc_logging_noop.cc",
       "media/webrtc_logging.h",
     ]
   }
 
   if (enable_plugins) {
     sources += rebase_path(
         content_renderer_gypi_values.private_renderer_plugin_sources,
         ".", "//content")
     deps += [
-      # TODO(GYP)
-      #"//ppapi/ppapi_internal.gyp:ppapi_host",
-      #"//ppapi/ppapi_internal.gyp:ppapi_proxy",
-      #"//ppapi/ppapi_internal.gyp:ppapi_shared",
+      "//ppapi:ppapi_host",
+      "//ppapi:ppapi_proxy",
+      "//ppapi:ppapi_shared",
     ]
   } else {
     # These files are in the WebRTC list, but also require plugins.
     if (enable_webrtc) {
       sources -= [
         "media/webrtc/video_destination_handler.cc",
         "media/webrtc/video_destination_handler.h",
       ]
     }
   }
 
   if (enable_plugins && enable_webrtc) {
     sources += rebase_path(
         content_renderer_gypi_values.private_renderer_plugin_webrtc_sources,
         ".", "//content")
   }
 
   if (!enable_pepper_cdms) {
     sources -= [
       "renderer/media/crypto/ppapi_decryptor.cc",
       "renderer/media/crypto/ppapi_decryptor.h",
     ]
   }
 }