RefCounted types should not have public destructors, Linux fixes

gpu/command_buffer/service/gl_surface_mock.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 GPU_COMMAND_BUFFER_SERVICE_GL_SURFACE_MOCK_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GL_SURFACE_MOCK_H_
 #pragma once
 
 #include "ui/gl/gl_surface.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace gpu {
 
 class GLSurfaceMock : public gfx::GLSurface {
  public:
   GLSurfaceMock();
-  virtual ~GLSurfaceMock();
 
   MOCK_METHOD0(Initialize, bool());
   MOCK_METHOD0(Destroy, void());
   MOCK_METHOD1(Resize, bool(const gfx::Size& size));
   MOCK_METHOD0(IsOffscreen, bool());
   MOCK_METHOD0(SwapBuffers, bool());
   MOCK_METHOD4(PostSubBuffer, bool(int x, int y, int width, int height));
   MOCK_METHOD0(GetExtensions, std::string());
   MOCK_METHOD0(GetSize, gfx::Size());
   MOCK_METHOD0(GetHandle, void*());
   MOCK_METHOD0(GetBackingFrameBufferObject, unsigned int());
   MOCK_METHOD1(OnMakeCurrent, bool(gfx::GLContext* context));
   MOCK_METHOD1(SetBackbufferAllocation, void(bool allocated));
   MOCK_METHOD1(SetFrontbufferAllocation, void(bool allocated));
   MOCK_METHOD0(GetShareHandle, void*());
   MOCK_METHOD0(GetDisplay, void*());
   MOCK_METHOD0(GetConfig, void*());
   MOCK_METHOD0(GetFormat, unsigned());
 
+ protected:
+  virtual ~GLSurfaceMock();
+
  private:
   DISALLOW_COPY_AND_ASSIGN(GLSurfaceMock);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GL_SURFACE_MOCK_H_