Set up a interposing library for Carbon calls made by plugins.

webkit/glue/plugins/fake_plugin_window_tracker_mac.h

Index: webkit/glue/plugins/fake_plugin_window_tracker_mac.h
diff --git a/webkit/glue/plugins/fake_plugin_window_tracker_mac.h b/webkit/glue/plugins/fake_plugin_window_tracker_mac.h
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+++ b/webkit/glue/plugins/fake_plugin_window_tracker_mac.h
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+// Copyright (c) 2009 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 WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_
+#define WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_
+
+#include <Carbon/Carbon.h>
+
+#include "base/basictypes.h"
+#include "base/scoped_cftyperef.h"
+
+class WebPluginDelegateImpl;
+
+// Serves as a bridge between password delegate instances and the Carbon
+// interposing library. The Carbon functions we interpose work in terms of
+// WindowRefs, and we need to be able to map from those back to the plugin
+// delegates that know what we should claim about the state of the world.
+class __attribute__((visibility("default"))) FakePluginWindowTracker {
+ public:
+  FakePluginWindowTracker();
+
+  // Returns the shared window tracker instance.
+  static FakePluginWindowTracker* SharedInstance();
+
+  // Creates a new fake window ref associated with |delegate|.
+  WindowRef GenerateFakeWindowForDelegate(WebPluginDelegateImpl* delegate);
+
+  // Returns the WebPluginDelegate associated with the given fake window ref.
+  const WebPluginDelegateImpl* GetDelegateForFakeWindow(WindowRef window) const;
+
+  // Removes the fake window ref entry for |delegate|.
+  void RemoveFakeWindowForDelegate(WebPluginDelegateImpl* delegate,
+                                   WindowRef window);
+
+ private:
+  scoped_cftyperef<CFMutableDictionaryRef> window_to_delegate_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakePluginWindowTracker);
+};
+
+#endif  // WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_