Remove grow box rect support, browser part.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index ce1aa4eca539acf6059328e5262b0b556d1d389a..51461752667410033694fd108835c8510b2dbdc7 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -600,7 +600,6 @@ bool RenderWidgetHostImpl::GetResizeParams(ResizeParams* resize_params) {
 
   GetScreenInfo(&resize_params->screen_info);
   if (delegate_) {
-    resize_params->resizer_rect = delegate_->GetRootWindowResizerRect(this);
     resize_params->is_fullscreen_granted =
         delegate_->IsFullscreenForCurrentTab();
     resize_params->display_mode = delegate_->GetDisplayMode(this);
@@ -683,10 +682,6 @@ void RenderWidgetHostImpl::WasResized() {
     delegate_->RenderWidgetWasResized(this, width_changed);
 }
 
-void RenderWidgetHostImpl::ResizeRectChanged(const gfx::Rect& new_rect) {
-  Send(new ViewMsg_ChangeResizeRect(routing_id_, new_rect));
-}
-
 void RenderWidgetHostImpl::GotFocus() {
   Focus();
   if (owner_delegate_)