RefCounted types should not have public destructors, content/browser part 2

content/common/gpu/image_transport_surface.h

Index: content/common/gpu/image_transport_surface.h
diff --git a/content/common/gpu/image_transport_surface.h b/content/common/gpu/image_transport_surface.h
index b2d27d47d440d0f03dfb2d103f2d70366a2265a5..9e1a05cfc42d61ba29b150ecebdd50477b83cadd 100644
--- a/content/common/gpu/image_transport_surface.h
+++ b/content/common/gpu/image_transport_surface.h
@@ -158,7 +158,6 @@ class PassThroughImageTransportSurface
                                    GpuCommandBufferStub* stub,
                                    gfx::GLSurface* surface,
                                    bool transport);
-  virtual ~PassThroughImageTransportSurface();
 
   // GLSurface implementation.
   virtual bool Initialize() OVERRIDE;
@@ -175,6 +174,9 @@ class PassThroughImageTransportSurface
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
+ protected:
+  virtual ~PassThroughImageTransportSurface();
+
  private:
   scoped_ptr<ImageTransportHelper> helper_;
   gfx::Size new_size_;