From d2981d0e352c68ed2c8cf95a995203ba9468a14b Mon Sep 17 00:00:00 2001
From: George Wright <gw280@google.com>
Date: Thu, 20 Feb 2020 15:01:24 -0800
Subject: [PATCH] Flush the SkCanvas when submitting a frame in
 ShellTestPlatformViewVulkan::OffscreenSurface

---
 shell/common/shell_test_platform_view_vulkan.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/shell/common/shell_test_platform_view_vulkan.cc b/shell/common/shell_test_platform_view_vulkan.cc
index d6de169e7dc70..e9f41484d9881 100644
--- a/shell/common/shell_test_platform_view_vulkan.cc
+++ b/shell/common/shell_test_platform_view_vulkan.cc
@@ -149,8 +149,11 @@ ShellTestPlatformViewVulkan::OffScreenSurface::AcquireFrame(
                                       SkAlphaType::kOpaque_SkAlphaType);
   auto surface = SkSurface::MakeRenderTarget(context_.get(), SkBudgeted::kNo,
                                              image_info, 0, nullptr);
-  SurfaceFrame::SubmitCallback callback =
-      [](const SurfaceFrame&, SkCanvas* canvas) -> bool { return true; };
+  SurfaceFrame::SubmitCallback callback = [](const SurfaceFrame&,
+                                             SkCanvas* canvas) -> bool {
+    canvas->flush();
+    return true;
+  };
 
   return std::make_unique<SurfaceFrame>(std::move(surface), true,
                                         std::move(callback));