message: End2EndTests: Fix -w runs without ASSERTs enabled.
  The flushing of command buffers was in an ASSERT which made them skipped
  on release builds.
diff: @@ -332,8 +332,10 @@ void DawnTest::SwapBuffersForCapture() {
  void DawnTest::FlushWire() {
  if (gTestUsesWire) {
  - ASSERT(mC2sBuf->Flush());
  - ASSERT(mS2cBuf->Flush());
  + bool C2SFlushed = mC2sBuf->Flush();
  + bool S2CFlushed = mS2cBuf->Flush();
  + ASSERT(C2SFlushed);
  + ASSERT(S2CFlushed);
  }
  }
  