Infrastructure for reading V8's initial snapshot from external files

chrome/chrome_android_paks.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.
 {
   'variables': {
     'chrome_android_pak_output_folder': '<@(PRODUCT_DIR)/../assets/<(package_name)',
     'chrome_android_pak_input_resources': [
       '<(PRODUCT_DIR)/resources.pak',
       '<(PRODUCT_DIR)/chrome_100_percent.pak',
       '<(PRODUCT_DIR)/locales/am.pak',
@@ skipping 91 matching lines @@
     ],
     'conditions': [
       ['icu_use_data_file_flag==1', {
         'chrome_android_pak_input_resources': [
           '<(PRODUCT_DIR)/icudtl.dat',
         ],
         'chrome_android_pak_output_resources': [
           '<(chrome_android_pak_output_folder)/icudtl.dat',
         ],
       }],
+      ['v8_use_external_startup_data==1', {
+        'chrome_android_pak_input_resources': [
+          '<(PRODUCT_DIR)/natives_blob.bin',
+          '<(PRODUCT_DIR)/snapshot_blob.bin',
+        ],
+        'chrome_android_pak_output_resources': [
+          '<(chrome_android_pak_output_folder)/natives_blob.bin',
+          '<(chrome_android_pak_output_folder)/snapshot_blob.bin',
+        ],
+      }],
     ],
   },
 }