Update the native_viewport interface to allow specification of the surface configuration, currently…

ui/gl/gl_surface_stub.h

Index: ui/gl/gl_surface_stub.h
diff --git a/ui/gl/gl_surface_stub.h b/ui/gl/gl_surface_stub.h
index 1bdd32a085ccb59d59be55205d1dbd0263c0bc03..9913b8e8299ed68302ec71f887ff58abe043f2e0 100644
--- a/ui/gl/gl_surface_stub.h
+++ b/ui/gl/gl_surface_stub.h
@@ -12,6 +12,7 @@ namespace gfx {
 // A GLSurface that does nothing for unit tests.
 class GL_EXPORT GLSurfaceStub : public GLSurface {
  public:
+  GLSurfaceStub(SurfaceConfiguration requested_configuration);
   void SetSize(const gfx::Size& size) { size_ = size; }
 
   // Implement GLSurface.