Revved to chromium 290d2cfa5187ac1f2c87fde4c6dd6f27dad0c93a refs/remotes/origin/HEAD
diff --git a/gin/per_context_data.h b/gin/per_context_data.h
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+// 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.
+
+#ifndef GIN_PER_CONTEXT_DATA_H_
+#define GIN_PER_CONTEXT_DATA_H_
+
+#include "base/basictypes.h"
+#include "base/supports_user_data.h"
+#include "gin/gin_export.h"
+#include "v8/include/v8.h"
+
+namespace gin {
+
+class ContextHolder;
+class Runner;
+
+// There is one instance of PerContextData per v8::Context managed by Gin. This
+// class stores all the Gin-related data that varies per context. Arbitrary data
+// can be associated with this class by way of the SupportsUserData methods.
+// Instances of this class (and any associated user data) are destroyed before
+// the associated v8::Context.
+class GIN_EXPORT PerContextData : public base::SupportsUserData {
+ public:
+ PerContextData(ContextHolder* context_holder,
+ v8::Handle<v8::Context> context);
+ virtual ~PerContextData();
+
+ // Can return NULL after the ContextHolder has detached from context.
+ static PerContextData* From(v8::Handle<v8::Context> context);
+
+ // The Runner associated with this context. To execute script in this context,
+ // please use the appropriate API on Runner.
+ Runner* runner() const { return runner_; }
+ void set_runner(Runner* runner) { runner_ = runner; }
+
+ ContextHolder* context_holder() { return context_holder_; }
+
+ private:
+ ContextHolder* context_holder_;
+ Runner* runner_;
+
+ DISALLOW_COPY_AND_ASSIGN(PerContextData);
+};
+
+} // namespace gin
+
+#endif // GIN_PER_CONTEXT_DATA_H_
