Bug 1124452 - Ensure the widget continues to be destroyed on the main thread. r=BenWa

2015-01-29 12:57:55 -05:00
parent d00963ed70
commit c536b29824
5 changed files with 24 additions and 0 deletions
--- a/gfx/layers/apz/util/ChromeProcessController.cpp
+++ b/gfx/layers/apz/util/ChromeProcessController.cpp
@@ -83,3 +83,17 @@ ChromeProcessController::AcknowledgeScrollUpdate(const FrameMetrics::ViewID& aSc
 {
  APZCCallbackHelper::AcknowledgeScrollUpdate(aScrollId, aScrollGeneration);
 }
+
+void
+ChromeProcessController::Destroy()
+{
+  if (MessageLoop::current() != mUILoop) {
+    mUILoop->PostTask(
+      FROM_HERE,
+      NewRunnableMethod(this, &ChromeProcessController::Destroy));
+    return;
+  }
+
+  MOZ_ASSERT(MessageLoop::current() == mUILoop);
+  mWidget = nullptr;
+}