gpu: Check for WaitForVBlank failure

WaitForVBlank can fail if D3D11 device is lost.

Also use InMillisecondsRoundedUp in fallback Sleep() call to match
PostDelayedTask() behavior.

Bug: 953970
Change-Id: I129a93b41be553f184682e09b21f83ca8d3aedb4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1618264Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: Sunny Sachanandani <sunnyps@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661113}

ui/gl/vsync_thread_win.cc

@@ -95,11 +95,11 @@ void VSyncThreadWin::WaitForVSync() {
     }
   }
 
-  if (window_output_) {
-    window_output_->WaitForVBlank();
-  } else {
-    Sleep(static_cast<DWORD>(interval.InMilliseconds()));
-  }
+  bool wait_for_vblank_succeeded =
+      window_output_ && SUCCEEDED(window_output_->WaitForVBlank());
+
+  if (!wait_for_vblank_succeeded)
+    Sleep(static_cast<DWORD>(interval.InMillisecondsRoundedUp()));
 
   base::AutoLock auto_lock(lock_);
   DCHECK(started_);