Vulkan: Fix flaky linux-asan-test failure with asyncCommandQueue Regression from this commit: Vulkan: Clean up CommandProcessor::queuePresent https://chromium-review.googlesource.com/c/angle/angle/+/4257927 Details: - `CommandProcessor::processTask()` handles `CustomTask::Present`; - It calls `CommandProcessor::present()` that assigns `swapchainStatus->isPending = false`; - `CommandProcessor` thread is suspended for a while...; - `WindowSurfaceVk::destroy()` calls `waitForPresentToBeSubmitted()`; - It sees that `swapchainStatus->isPending == false` and skips waiting; - `WindowSurfaceVk` (and `SwapchainStatus` ) instance is destroyed; - `CommandProcessor` thread resumes and checks `task->getSwapchainStatus()->lastPresentResult` - ASAN failure. The 460 bytes offset is `SwapchainStatus::lastPresentResult` member inside `WindowSurfaceVk` instance. Test that failed: ImageTest.ValidationGLEGLImageExternal/ES2_Vulkan_SwiftShader_AsyncCommandQueue ==27108==ERROR: AddressSanitizer: heap-use-after-free on address 0x61e0000eea4c at pc 0x7f98434e0e10 bp 0x7f98363c0a70 sp 0x7f98363c0a68 READ of size 4 at 0x61e0000eea4c thread T29 #0 0x7f98434e0e0f in rx::vk::CommandProcessor::processTask(rx::vk::CommandProcessorTask*) src/libANGLE/renderer/vulkan/CommandProcessor.cpp:664:59 0x61e0000eea4c is located 460 bytes inside of 2880-byte region [0x61e0000ee880,0x61e0000ef3c0) freed by thread T0 here: #0 0x5651c72a563d in operator delete(void*) /b/s/w/ir/cache/builder/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cpp:152:3 #1 0x7f9843f4c8c9 in SafeDelete<rx::SurfaceImpl> src/common/angleutils.h:285:5 previously allocated by thread T0 here: #0 0x5651c72a4ddd in operator new(unsigned long) /b/s/w/ir/cache/builder/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cpp:95:3 #1 0x7f9843a38599 in rx::DisplayVkXcb::createWindowSurfaceVk(egl::SurfaceState const&, long) src/libANGLE/renderer/vulkan/linux/xcb/DisplayVkXcb.cpp:99:12 Bug: b/269524271 Change-Id: Ie70bc9e2b89267653ddb6b3a30c1a67e22864f26 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4491743 Commit-Queue: Igor Nazarov <i.nazarov@samsung.com> Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>