[Bindings] Create and use V8 context snapshots

extensions/shell/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("//build/util/process_version.gni")
 import("//extensions/features/features.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
+import("//v8/snapshot_toolchain.gni")
 if (is_mac) {
   import("//build/config/mac/rules.gni")
   import("//third_party/icu/config.gni")
   import("//v8/gni/v8.gni")
 }
 
 assert(enable_extensions)
 
 grit("resources") {
   source = "app_shell_resources.grd"
@@ skipping 297 matching lines @@
     "//build/util/LASTCHANGE",
     "//chrome/VERSION",
   ]
   output = "$target_gen_dir/common/version.h"
 }
 
 if (is_mac) {
   bundle_data("app_shell_framework_resources") {
     sources = [
       "$root_gen_dir/extensions/shell/app_shell_resources.pak",
+      "$root_out_dir/context_blob.bin",
       "$root_out_dir/extensions_shell_and_test.pak",
     ]
     public_deps = [
       ":resources_grit",
       "//extensions:shell_and_test_pak",
+      "//gin:run_gin_blink_snapshot($v8_snapshot_toolchain)",
     ]
     if (icu_use_data_file) {
       sources += [ "$root_out_dir/icudtl.dat" ]
       public_deps += [ "//third_party/icu:icudata" ]
     }
     if (v8_use_external_startup_data) {
       sources += [
         "$root_out_dir/natives_blob.bin",
         "$root_out_dir/snapshot_blob.bin",
       ]
@@ skipping 104 matching lines @@
     "//extensions/browser",
   ]
 
   if (is_chromeos) {
     deps += [
       "//chromeos:test_support",
       "//components/keyed_service/content",
     ]
   }
 }