Remove grow box rect support, renderer part.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 6a461f64fb66edfba8a0d3dc9e8e01d9371c4634..f9c558107d9322bdf5bdaa3ec15fcb69020f58eb 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2391,7 +2391,6 @@ void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
         top_controls_shrink_blink_size_;
     resize_params.top_controls_height = top_controls_height_;
     resize_params.visible_viewport_size = visible_viewport_size_;
-    resize_params.resizer_rect = resizer_rect_;
     resize_params.is_fullscreen_granted = is_fullscreen_granted();
     resize_params.display_mode = display_mode_;
     resize_params.needs_resize_ack = false;
@@ -2949,7 +2948,6 @@ void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
   params.physical_backing_size = gfx::ScaleToCeiledSize(size(), factor);
   params.top_controls_shrink_blink_size = false;
   params.top_controls_height = 0.f;
-  params.resizer_rect = WebRect();
   params.is_fullscreen_granted = is_fullscreen_granted();
   params.display_mode = display_mode_;
   OnResize(params);