Merging upstream version 126.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 10 insertions, 6 deletions

diff --git a/gfx/layers/wr/WebRenderBridgeParent.cpp b/gfx/layers/wr/WebRenderBridgeParent.cpp
index 83139b6af6..68e0c7af8c 100644
--- a/gfx/layers/wr/WebRenderBridgeParent.cpp
+++ b/gfx/layers/wr/WebRenderBridgeParent.cpp
@@ -1919,6 +1919,10 @@ mozilla::ipc::IPCResult WebRenderBridgeParent::RecvClearCachedResources() {
       wr::AsUint64(mPipelineId), wr::AsUint64(mApi->GetId()),
       IsRootWebRenderBridgeParent());
 
+  if (!IsRootWebRenderBridgeParent()) {
+    mApi->FlushPendingWrTransactionEventsWithoutWait();
+  }
+
   // Clear resources
   wr::TransactionBuilder txn(mApi);
   txn.SetLowPriority(true);
@@ -2618,17 +2622,17 @@ void WebRenderBridgeParent::ScheduleGenerateFrame(wr::RenderReasons aReasons) {
 }
 
 void WebRenderBridgeParent::FlushRendering(wr::RenderReasons aReasons,
-                                           bool aWaitForPresent) {
+                                           bool aBlocking) {
   if (mDestroyed) {
     return;
   }
 
-  // This gets called during e.g. window resizes, so we need to flush the
-  // scene (which has the display list at the new window size).
-  FlushSceneBuilds();
-  FlushFrameGeneration(aReasons);
-  if (aWaitForPresent) {
+  if (aBlocking) {
+    FlushSceneBuilds();
+    FlushFrameGeneration(aReasons);
     FlushFramePresentation();
+  } else {
+    ScheduleGenerateFrame(aReasons);
   }
 }