Restore resize throttling on Chrome OS

content/browser/compositor/delegated_frame_host.cc

Index: content/browser/compositor/delegated_frame_host.cc
diff --git a/content/browser/compositor/delegated_frame_host.cc b/content/browser/compositor/delegated_frame_host.cc
index 229d190e0667bead5a6194cc38d93a46af38844e..66f262fbf8bc6dd279d7e2d4395ac79c1b7274d2 100644
--- a/content/browser/compositor/delegated_frame_host.cc
+++ b/content/browser/compositor/delegated_frame_host.cc
@@ -228,6 +228,13 @@ void DelegatedFrameHost::WasResized() {
   MaybeCreateResizeLock();
 }
 
+gfx::Size DelegatedFrameHost::GetRequestedRendererSize() const {
+  if (resize_lock_)
+    return resize_lock_->expected_size();
+  else
+    return client_->DesiredFrameSize();
+}
+
 void DelegatedFrameHost::CheckResizeLock() {
   if (!resize_lock_ ||
       resize_lock_->expected_size() != current_frame_size_in_dip_)