Add permissions buts for Pepper plugins.

ppapi/shared_impl/ppapi_permissions.h

Index: ppapi/shared_impl/ppapi_permissions.h
diff --git a/ppapi/shared_impl/ppapi_permissions.h b/ppapi/shared_impl/ppapi_permissions.h
new file mode 100644
index 0000000000000000000000000000000000000000..3caa65d0e487e9268cafff4ab93dac0be2b0ff5b
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+++ b/ppapi/shared_impl/ppapi_permissions.h
@@ -0,0 +1,45 @@
+// Copyright (c) 2012 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_PERMISSIONS_H_
+#define PPAPI_SHARED_IMPL_PPAPI_PERMISSIONS_H_
+
+#include "base/basictypes.h"
+#include "ppapi/shared_impl/ppapi_shared_export.h"
+
+namespace ppapi {
+
+enum Permission {
+  // Allows access to dev interfaces.
+  PERMISSION_DEV = 1 << 0,
+
+  // Allows access to Browser-internal interfaces.
+  PERMISSION_PRIVATE = 1 << 2,
+
+  // Allows ability to bypass user-gesture checks for showing things like
+  // file select dialogs.
+  PERMISSION_BYPASS_USER_GESTURE = 1 << 3
+};
+
+class PPAPI_SHARED_EXPORT PpapiPermissions {
+ public:
+  // Initializes the permissions struct with no permissions.
+  PpapiPermissions();
+
+  // Initializes with the given permissions bits set.
+  explicit PpapiPermissions(uint32 perms);
+
+  ~PpapiPermissions();
+
+  bool HasPermission(Permission perm) const;
+
+ private:
+  uint32 permissions_;
+
+  // Note: Copy & assign supported.
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_SHARED_IMPL_PPAPI_PERMISSIONS_H_