[Bindings] Create and use V8 context snapshots

extensions/shell/BUILD.gn

Index: extensions/shell/BUILD.gn
diff --git a/extensions/shell/BUILD.gn b/extensions/shell/BUILD.gn
index b25f58b4d7f29ba4e310516d002b66376c17df94..4886ee746673b8898819f69daa26d3602e7a51a7 100644
--- a/extensions/shell/BUILD.gn
+++ b/extensions/shell/BUILD.gn
@@ -8,6 +8,7 @@ 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")
@@ -255,6 +256,10 @@ if (is_mac) {
       "//extensions:shell_and_test_pak",
     ]
 
+    public_deps = [
+      "//gin:v8_context_snapshot_for_blink",
+    ]
+
     if (is_win) {
       configs += [ "//build/config/win:windowed" ]
       configs -= [ "//build/config/win:console" ]
@@ -326,11 +331,13 @@ 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",
       "$root_out_dir/extensions_shell_and_test.pak",
     ]
     public_deps = [
       ":resources_grit",
       "//extensions:shell_and_test_pak",
+      "//gin:v8_context_snapshot_for_blink",
     ]
     if (icu_use_data_file) {
       sources += [ "$root_out_dir/icudtl.dat" ]