Added message filter receiving frames from compositor

android_webview/browser/render_thread_manager.cc

Index: android_webview/browser/render_thread_manager.cc
diff --git a/android_webview/browser/render_thread_manager.cc b/android_webview/browser/render_thread_manager.cc
index 08e115fee88c953172eb0aa6115065372ee06043..cf8fdf82c410ef0b18ccafeb46e4fc4968257684 100644
--- a/android_webview/browser/render_thread_manager.cc
+++ b/android_webview/browser/render_thread_manager.cc
@@ -206,6 +206,12 @@ std::unique_ptr<ChildFrame> RenderThreadManager::GetSynchronousCompositorFrame(
       child_frame->offscreen_pre_raster, child_frame->is_layer);
 }
 
+void RenderThreadManager::SetFrameFutureOnUI(
+    const scoped_refptr<content::SynchronousCompositor::FrameFuture>&
+        frame_future) {
+  frame_future_ = std::move(frame_future);
+}
+
 std::unique_ptr<ChildFrame> RenderThreadManager::PassFrameOnRT() {
   base::AutoLock lock(lock_);
   hardware_renderer_has_frame_ =
@@ -217,6 +223,12 @@ std::unique_ptr<ChildFrame> RenderThreadManager::PassFrameOnRT() {
   return std::move(child_frame_);
 }
 
+scoped_refptr<content::SynchronousCompositor::FrameFuture>
+RenderThreadManager::PassFrameFutureOnRT() {
+  base::AutoLock lock(lock_);
+  return std::move(frame_future_);
+}
+
 std::unique_ptr<ChildFrame> RenderThreadManager::PassUncommittedFrameOnUI() {
   base::AutoLock lock(lock_);
   if (async_on_draw_hardware_ && child_frame_.get()) {