Revert of mac: ensure ui::Compositor exists for visible RWHVs

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 3fc054436236ea74bf1a88c6864b6ed301c5e1b4..7c56ffd0d38de7c183fbff1cbdf0e14240b3d1cb 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -600,9 +600,6 @@
         ->GetInputEventRouter()
         ->AddSurfaceIdNamespaceOwner(GetSurfaceIdNamespace(), this);
   }
-
-  if (!render_widget_host_->is_hidden())
-    EnsureBrowserCompositorView();
 }
 
 RenderWidgetHostViewMac::~RenderWidgetHostViewMac() {
@@ -1500,7 +1497,8 @@
     gfx::Size dip_size = gfx::ConvertSizeToDIP(scale_factor, pixel_size);
 
     root_layer_->SetBounds(gfx::Rect(dip_size));
-    if (browser_compositor_ && browser_compositor_->compositor()) {
+    if (!render_widget_host_->is_hidden()) {
+      EnsureBrowserCompositorView();
       browser_compositor_->compositor()->SetScaleAndSize(
           scale_factor, pixel_size);
     }