switched back to step 2

Author: gaaclarke

impeller/entity/contents/filters/gaussian_blur_filter_contents.cc

@@ -317,7 +317,7 @@ std::optional<Entity> GaussianBlurFilterContents::RenderFilter(
                           .blur_uv_offset = Point(0.0, pass1_pixel_size.y),
                           .blur_sigma = scaled_sigma.y * effective_scalar.y,
                           .blur_radius = blur_radius.y * effective_scalar.y,
-                          .step_size = 1.0,
+                          .step_size = 2.0,
                       });
 
   // TODO(gaaclarke): Make this pass reuse the texture from pass1.
@@ -328,7 +328,7 @@ std::optional<Entity> GaussianBlurFilterContents::RenderFilter(
                           .blur_uv_offset = Point(pass1_pixel_size.x, 0.0),
                           .blur_sigma = scaled_sigma.x * effective_scalar.x,
                           .blur_radius = blur_radius.x * effective_scalar.x,
-                          .step_size = 1.0,
+                          .step_size = 2.0,
                       });
 
   SamplerDescriptor sampler_desc = MakeSamplerDescriptor(