[Bindings] Create and use V8 context snapshots

third_party/WebKit/Source/bindings/bindings.gni

 # 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.
 
 # All paths in this file should be absolute so it can be imported into
 # different contexts.
 
 import("//third_party/WebKit/Source/bindings/modules/v8/v8.gni")
 
 bindings_core_v8_files =
@@ skipping 130 matching lines @@
                     "core/v8/V8MutationCallback.h",
                     "core/v8/V8NodeFilterCondition.cpp",
                     "core/v8/V8NodeFilterCondition.h",
                     "core/v8/V8ObjectBuilder.cpp",
                     "core/v8/V8ObjectBuilder.h",
                     "core/v8/V8PagePopupControllerBinding.cpp",
                     "core/v8/V8PagePopupControllerBinding.h",
                     "core/v8/V8PersistentValueVector.h",
                     "core/v8/V8ScriptRunner.cpp",
                     "core/v8/V8ScriptRunner.h",
+                    "core/v8/V8ContextSnapshot.cpp",
+                    "core/v8/V8ContextSnapshot.h",
                     "core/v8/V8StringResource.h",
                     "core/v8/V8V0CustomElementLifecycleCallbacks.cpp",
                     "core/v8/V8V0CustomElementLifecycleCallbacks.h",
                     "core/v8/V8WorkerGlobalScopeEventListener.cpp",
                     "core/v8/V8WorkerGlobalScopeEventListener.h",
                     "core/v8/WindowProxy.cpp",
                     "core/v8/WindowProxy.h",
                     "core/v8/WindowProxyManager.cpp",
                     "core/v8/WindowProxyManager.h",
                     "core/v8/WorkerOrWorkletScriptController.cpp",
@@ skipping 42 matching lines @@
           "core/v8/V8BindingForTesting.h",
           "core/v8/V8BindingTest.cpp",
           "core/v8/V8ObjectBuilderTest.cpp",
           "core/v8/V8ScriptRunnerTest.cpp",
           "core/v8/serialization/SerializedScriptValueTest.cpp",
           "core/v8/serialization/SerializedScriptValueThreadedTest.cpp",
           "core/v8/serialization/V8ScriptValueSerializerTest.cpp",
         ],
         "abspath")
 bindings_unittest_files += bindings_modules_v8_unittest_files