Hide fullscreen rotation jank

content/browser/renderer_host/compositor_impl_android.cc

Index: content/browser/renderer_host/compositor_impl_android.cc
diff --git a/content/browser/renderer_host/compositor_impl_android.cc b/content/browser/renderer_host/compositor_impl_android.cc
index 006a51dc8552f337ae44b8e8fad8034fc52f3b17..a38558395dc6a243da258c1e754ed3a73e6b24d4 100644
--- a/content/browser/renderer_host/compositor_impl_android.cc
+++ b/content/browser/renderer_host/compositor_impl_android.cc
@@ -597,18 +597,8 @@ void CompositorImpl::SetWindowBounds(const gfx::Size& size) {
 
 void CompositorImpl::SetHasTransparentBackground(bool transparent) {
   has_transparent_background_ = transparent;
-  if (host_) {
+  if (host_)
     host_->set_has_transparent_background(transparent);
-
-    // Give a delay in setting the background color to avoid the color for
-    // the normal mode (white) affecting the UI transition.
-    base::ThreadTaskRunnerHandle::Get().get()->PostDelayedTask(
-        FROM_HERE,
-        base::Bind(&CompositorImpl::SetBackgroundColor,
-                   weak_factory_.GetWeakPtr(),
-                   transparent ? SK_ColorBLACK : SK_ColorWHITE),
-        base::TimeDelta::FromMilliseconds(500));
-  }
 }
 
 void CompositorImpl::SetBackgroundColor(int color) {