Extract DependencyGraph from ProfileDependencyManager.

chrome/browser/profiles/dependency_node.h

Index: chrome/browser/profiles/dependency_node.h
diff --git a/chrome/browser/profiles/dependency_node.h b/chrome/browser/profiles/dependency_node.h
new file mode 100644
index 0000000000000000000000000000000000000000..37edd98095b5690233fd08c61c37104573ad39a1
--- /dev/null
+++ b/chrome/browser/profiles/dependency_node.h
@@ -0,0 +1,14 @@
+// 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 CHROME_BROWSER_PROFILES_DEPENDENCY_NODE_H_
+#define CHROME_BROWSER_PROFILES_DEPENDENCY_NODE_H_
+
+class DependencyNode {
+ protected:
+  DependencyNode() {}
+  ~DependencyNode() {}

[Elliot Glaysher, 2013/04/12 20:15:06]

does this need to be virtual?

[Paweł Hajdan Jr., 2013/04/12 23:00:00]

I don't think it's needed - it seems there is a general preference not to make a
class require vptr unless necessary, so I'm trying to follow that here.

That would be different if it was a real interface with virtual methods, or if
we'd be destroying objects using DependencyNode* .

+};
+
+#endif  // CHROME_BROWSER_PROFILES_DEPENDENCY_NODE_H_