[Bindings] Create and use V8 context snapshots

content/test/test_blink_web_unit_test_support.cc

 // Copyright 2013 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.
 
 #include "content/test/test_blink_web_unit_test_support.h"
 
 #include "base/callback.h"
 #include "base/feature_list.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 87 matching lines @@
   base::mac::ScopedNSAutoreleasePool autorelease_pool;
 #endif
 
   url_loader_factory_ = blink::WebURLLoaderMockFactory::Create();
   mock_clipboard_.reset(new MockWebClipboardImpl());
 
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
   gin::V8Initializer::LoadV8Snapshot();
   gin::V8Initializer::LoadV8Natives();
 #endif
+  gin::V8Initializer::LoadV8Context();
 
   scoped_refptr<base::SingleThreadTaskRunner> dummy_task_runner;
   std::unique_ptr<base::ThreadTaskRunnerHandle> dummy_task_runner_handle;
   if (!base::ThreadTaskRunnerHandle::IsSet()) {
     // Dummy task runner is initialized here because the blink::initialize
     // creates IsolateHolder which needs the current task runner handle. There
     // should be no task posted to this task runner. The message loop is not
     // created before this initialization because some tests need specific kinds
     // of message loops, and their types are not known upfront. Some tests also
     // create their own thread bundles or message loops, and doing the same in
@@ skipping 214 matching lines @@
 blink::WebRTCCertificateGenerator*
 TestBlinkWebUnitTestSupport::CreateRTCCertificateGenerator() {
 #if BUILDFLAG(ENABLE_WEBRTC)
   return new TestWebRTCCertificateGenerator();
 #else
   return nullptr;
 #endif
 }
 
 }  // namespace content