aw: Ensure invalidation when pipeline is stalled

android_webview/browser/shared_renderer_state.cc

Index: android_webview/browser/shared_renderer_state.cc
diff --git a/android_webview/browser/shared_renderer_state.cc b/android_webview/browser/shared_renderer_state.cc
index 5450da63c83ba901b54f786dc2411667fff3fb63..0de8371b1c1fcb05a3d471ad263cfd62eb267237 100644
--- a/android_webview/browser/shared_renderer_state.cc
+++ b/android_webview/browser/shared_renderer_state.cc
@@ -186,6 +186,18 @@ void SharedRendererState::PostExternalDrawConstraintsToChildCompositor(
   }
 }
 
+void SharedRendererState::DidSkipCommitFrame() {
+  ui_loop_->PostTask(
+      FROM_HERE,
+      base::Bind(&SharedRendererState::DidSkipCommitFrameOnUIThread,
+                 ui_thread_weak_ptr_));
+}
+
+void SharedRendererState::DidSkipCommitFrameOnUIThread() {
+  DCHECK(ui_loop_->BelongsToCurrentThread());
+  client_on_ui_->DidSkipCommitFrame();
+}
+
 const ParentCompositorDrawConstraints
 SharedRendererState::ParentDrawConstraints() const {
   base::AutoLock lock(lock_);