This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.

Test: ../../../../resources/webgl_test_files/deqp/functional/gles3/framebufferblit/default_framebuffer_05.html
[ 1: FAIL ] blit.default_framebuffer.rgb8:
[ 2: FAIL ] blit.default_framebuffer.rgb8_nearest_scale_blit_from_default:
[ 3: FAIL ] blit.default_framebuffer.rgb8_nearest_scale_blit_to_default:
[ 4: FAIL ] blit.default_framebuffer.rgb8_linear_scale_blit_from_default:
[ 5: FAIL ] blit.default_framebuffer.rgb8_linear_scale_blit_to_default:
[ 6: FAIL ] blit.default_framebuffer.rgb8_linear_out_of_bounds_blit_from_default:
[ 7: FAIL ] blit.default_framebuffer.rgb8_linear_out_of_bounds_blit_to_default:
[ 8: PASS ] blit.default_framebuffer.r32f_nearest_out_of_bounds_blit_to_default: successfullyParsed is true
[ FAIL ] 7 failures reported