NOT FOR LANDING - [WebView] Allow fling animation via the LayerScrollOffsetDelegate

content/browser/android/in_process/synchronous_compositor_impl.cc

Index: content/browser/android/in_process/synchronous_compositor_impl.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_impl.cc b/content/browser/android/in_process/synchronous_compositor_impl.cc
index d424adcd36a3a8c6975b6d8562011849331deb97..aa5bdb87be9a41ad6832f6d8480cdb0f4c32e4f4 100644
--- a/content/browser/android/in_process/synchronous_compositor_impl.cc
+++ b/content/browser/android/in_process/synchronous_compositor_impl.cc
@@ -265,6 +265,13 @@ void SynchronousCompositorImpl::SetScrollableSize(
     compositor_client_->SetRootLayerScrollableSize(scrollable_size);
 }
 
+void SynchronousCompositorImpl::SetNeedsAnimate(
+    const AnimationCallback& animation) {
+  DCHECK(CalledOnValidThread());
+  if (compositor_client_)
+    compositor_client_->SetNeedsAnimate(animation);
+}
+
 // Not using base::NonThreadSafe as we want to enforce a more exacting threading
 // requirement: SynchronousCompositorImpl() must only be used on the UI thread.
 bool SynchronousCompositorImpl::CalledOnValidThread() const {