Fix gl_unittests on Mac core profile.

ui/gl/scoped_binders.h

 // 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 UI_GL_SCOPED_BINDERS_H_
 #define UI_GL_SCOPED_BINDERS_H_
 
 #include "base/macros.h"
 #include "ui/gl/gl_export.h"
 
@@ skipping 71 matching lines @@
   // TODO(dcastagna): Use GLStateRestorer.
   int buffer_;
   int enabled_;
   int index_;
   int size_;
   int type_;
   int normalized_;
   int stride_;
   void* pointer_;
 
+  unsigned current_vao_;
+  unsigned vao_;
+
   DISALLOW_COPY_AND_ASSIGN(ScopedVertexAttribArray);
 };
 
 class GL_EXPORT ScopedBufferBinder {
  public:
   ScopedBufferBinder(unsigned int target, unsigned int index);
   ~ScopedBufferBinder();
 
  private:
   // TODO(dcastagna): Use GLStateRestorer.
@@ skipping 47 matching lines @@
  private:
   unsigned capability_;
   unsigned char enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedCapability);
 };
 
 }  // namespace gl
 
 #endif  // UI_GL_SCOPED_BINDERS_H_