Split apart the PPAPI GN targets

ppapi/ppapi_internal.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
   },
   'target_defaults': {
     'conditions': [
@@ skipping 15 matching lines @@
   'includes': [
     'ppapi_sources.gypi',
     'ppapi_host.gypi',
     'ppapi_ipc.gypi',
     'ppapi_proxy.gypi',
     'ppapi_shared.gypi',
     'ppapi_tests.gypi',
   ],
   'targets': [
     {
-      # GN version: //ppapi:ppapi_shared
+      # GN version: //ppapi/shared_impl and //ppapi/thunk
       'target_name': 'ppapi_shared',
       'type': '<(component)',
       'variables': {
         # Set the ppapi_shared_target variable, so that we will pull in the
         # sources from ppapi_shared.gypi (and only from there). We follow the
         # same pattern for the other targets defined within this file.
         'ppapi_shared_target': 1,
       },
       'dependencies': [
         '../base/base.gyp:base',
@@ skipping 38 matching lines @@
           ],
         }],
       ],
     },
   ],
   'conditions': [
     ['component=="static_library"', {
       # In a static build, build ppapi_ipc separately.
       'targets': [
         {
-          # GN version: //ppapi:ppapi_ipc
+          # GN version: //ppapi/proxy:ipc
           'target_name': 'ppapi_ipc',
           'type': 'static_library',
           'variables': {
             'ppapi_ipc_target': 1,
           },
           'dependencies': [
             '../base/base.gyp:base',
             '../gpu/gpu.gyp:gpu_ipc',
             '../ipc/ipc.gyp:ipc',
             '../skia/skia.gyp:skia',
             '../ui/events/ipc/events_ipc.gyp:events_ipc',
             'ppapi.gyp:ppapi_c',
             'ppapi_shared',
           ],
           'all_dependent_settings': {
             'include_dirs': [
                 '..',
             ],
           },
         },
         {
-          # GN version: //ppapi:ppapi_proxy
+          # GN version: //ppapi/proxy
           'target_name': 'ppapi_proxy',
           'type': 'static_library',
           'variables': {
             'ppapi_proxy_target': 1,
           },
           'dependencies': [
             '../base/base.gyp:base',
             '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
             '../gin/gin.gyp:gin',
             '../gpu/gpu.gyp:gles2_implementation',
@@ skipping 151 matching lines @@
           },
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
       }],
     }],
   ],
 }