Move securityCheck out of V8WrapperInstantiationScope

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

+// 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;
+
+class CORE_EXPORT WrapperCreationSecurityCheck {

[haraken, 2017/04/07 04:23:36]

Add a class-level comment.

[adithyas, 2017/04/07 18:42:53]

Done.

+  STATIC_ONLY(WrapperCreationSecurityCheck);
+
+ public:
+  using SecurityCheckFunction = bool (*)(v8::Isolate*,
+                                         v8::Local<v8::Context>,
+                                         const WrapperTypeInfo*);
+  using RethrowExceptionFunction = void (*)(v8::Isolate*,
+                                            v8::Local<v8::Context>,
+                                            const WrapperTypeInfo*,
+                                            v8::Local<v8::Value>);
+
+  static void setSecurityCheckFunction(SecurityCheckFunction);
+  static void setRethrowExceptionFunction(RethrowExceptionFunction);

[haraken, 2017/04/07 04:23:36]

Is there any reason you adopted the function pointer injection pattern instead
of introducing BindingSecurityBase (so that BindingSecurity can override the
behavior of the methods)?

[Yuki, 2017/04/07 07:42:14]

Just FYI, BindingSecurity is STATIC_ONLY so far.

[haraken, 2017/04/07 09:53:40]

Makes sense.

+
+  static bool verifyContextAccess(v8::Isolate*,
+                                  v8::Local<v8::Context> creationContext,
+                                  const WrapperTypeInfo*);
+  static void rethrowCrossContextException(
+      v8::Isolate*,
+      v8::Local<v8::Context> creationContext,
+      const WrapperTypeInfo*,
+      v8::Local<v8::Value> crossContextException);
+
+ private:
+  static SecurityCheckFunction s_securityCheck;
+  static RethrowExceptionFunction s_rethrowException;
+};
+
+}  // namespace blink
+
+#endif  // WrapperCreationSecurityCheck_h