Add a new globals object for PPAPI tracking information.

ppapi/shared_impl/ppapi_globals.h

+// Copyright (c) 2011 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 PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_
+#define PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_
+
+#include "base/basictypes.h"
+#include "ppapi/shared_impl/ppapi_shared_export.h"
+
+namespace ppapi {
+
+class ResourceTracker;
+class VarTracker;
+
+// Abstract base class
+class PPAPI_SHARED_EXPORT PpapiGlobals {
+ public:
+  PpapiGlobals();
+  virtual ~PpapiGlobals();
+
+  // Getter for the global singleton.
+  inline static PpapiGlobals* Get() { return ppapi_globals_; }
+
+  virtual ResourceTracker* GetResourceTracker() = 0;
+  virtual VarTracker* GetVarTracker() = 0;
+
+ private:
+  static PpapiGlobals* ppapi_globals_;
+
+  DISALLOW_COPY_AND_ASSIGN(PpapiGlobals);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_