Move securityCheck out of V8WrapperInstantiationScope

third_party/WebKit/Source/bindings/core/v8/WrapperCreationSecurityCheck.h

Index: third_party/WebKit/Source/bindings/core/v8/WrapperCreationSecurityCheck.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/WrapperCreationSecurityCheck.h b/third_party/WebKit/Source/bindings/core/v8/WrapperCreationSecurityCheck.h
new file mode 100644
index 0000000000000000000000000000000000000000..2a2545445e9f8e8d09eece9fefdfaba19e15719f
--- /dev/null
+++ b/third_party/WebKit/Source/bindings/core/v8/WrapperCreationSecurityCheck.h
@@ -0,0 +1,46 @@
+// Copyright 2017 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.
+
+#ifndef WrapperCreationSecurityCheck_h
+#define WrapperCreationSecurityCheck_h
+
+#include "core/CoreExport.h"
+#include "platform/wtf/Allocator.h"
+#include "v8/include/v8.h"
+
+namespace blink {
+
+struct WrapperTypeInfo;
+
+// This class holds pointers to functions that implement creation context access
+// and exception rethrowing logic required by V8WrapperInstantiationScope when
+// creating wrappers.
+class CORE_EXPORT WrapperCreationSecurityCheck {
+  STATIC_ONLY(WrapperCreationSecurityCheck);
+
+ public:
+  using SecurityCheckFunction = bool (*)(v8::Local<v8::Context>,
+                                         const WrapperTypeInfo*);
+  using RethrowExceptionFunction = void (*)(v8::Local<v8::Context>,
+                                            const WrapperTypeInfo*,
+                                            v8::Local<v8::Value>);
+
+  static void SetSecurityCheckFunction(SecurityCheckFunction);
+  static void SetRethrowExceptionFunction(RethrowExceptionFunction);
+
+  static bool VerifyContextAccess(v8::Local<v8::Context> creation_context,
+                                  const WrapperTypeInfo*);
+  static void RethrowCrossContextException(
+      v8::Local<v8::Context> creation_context,
+      const WrapperTypeInfo*,
+      v8::Local<v8::Value> cross_context_exception);
+
+ private:
+  static SecurityCheckFunction security_check_;
+  static RethrowExceptionFunction rethrow_exception_;
+};
+
+}  // namespace blink
+
+#endif  // WrapperCreationSecurityCheck_h