[Bindings] Create and use V8 context snapshots

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index e29acdc758a6ef4ca9537979b2e65edcd1f48762..97a3304c12c456c206d0dcaa87e7f4aca2e972a9 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -21,6 +21,7 @@ import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/widevine/cdm/widevine.gni")
 import("//tools/resources/generate_resource_whitelist.gni")
 import("//v8/gni/v8.gni")
+import("//v8/snapshot_toolchain.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ -790,6 +791,7 @@ if (is_win) {
   bundle_data("chrome_framework_resources") {
     sources = [
       "$root_out_dir/app_mode_loader.app",
+      "$root_out_dir/context_blob.bin",
 
       # This image is used to badge the lock icon in the
       # authentication dialogs, such as those used for installation
@@ -809,6 +811,7 @@ if (is_win) {
     public_deps = [
       ":packed_resources",
       "//chrome/app_shim:app_mode_loader",
+      "//gin:run_gin_blink_snapshot($v8_snapshot_toolchain)",
     ]
 
     if (is_chrome_branded) {