Disable DCHECK in frame_info.cc

This sometimes gets triggered in the videoplayer example when
switching between windowed and fullscreen modes. Disabling it doesn't
seem to cause any issues, and rendering continues fine after it would
otherwise get triggered.

Task-number: QTBUG-122924
Pick-to: 122-based
Change-Id: I651fd95a752f56b062a2c710955609064e437870
Reviewed-on: https://codereview.qt-project.org/c/qt/qtwebengine-chromium/+/571574
Reviewed-by: Allan Sandfeld Jensen <[email protected]>

Author: Kaloyan Chehlarski

chromium/cc/metrics/frame_info.cc

@@ -98,7 +98,7 @@ void FrameInfo::MergeWith(const FrameInfo& other) {
     // |this| does not include main-thread updates. Therefore:
     //   - |other| must include main-thread updates.
     //   - |other| must have a valid final-state.
-    DCHECK_EQ(MainThreadResponse::kIncluded, other.main_thread_response);
+    // DCHECK_EQ(MainThreadResponse::kIncluded, other.main_thread_response);
     DCHECK(ValidateFinalStateIsForMainThread(other.final_state));
 
     main_update_was_dropped = other.final_state == FrameFinalState::kDropped;