Allow Chromecast tests to run on SwANGLE

This cl makes 2 changes allowing Chromecast tests to use SwANGLE: 1) It sets angle_use_vulkan_display to true when using Chromecast, effectively allowing SwANGLE to be used 2) It sets angle_vulkan_display_mode to "headless", allowing it to use DisplayVkHeadless instead of DisplayVkSimple, which ends up using "VK_EXT_headless_surface" instead of "VK_KHR_display", so that it's supported by SwiftShader Vulkan on Chromecast. Bug: chromium:1060139 Change-Id: Ia521ebddac14f5e34666bb9b64603bec598c41ce Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2826196Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Alexis Hétu <sugoi@chromium.org>

Allow Chromecast tests to run on SwANGLE
45344f05 · Alexis Hetu · Commit Bot · 90d18b03 · 45344f05
Commit 45344f05 authored Apr 14, 2021 by Alexis Hetu Committed by Commit Bot Apr 14, 2021
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angle.gni gni/angle.gni +6 -1

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--- a/gni/angle.gni
+++ b/gni/angle.gni
@@ -33,8 +33,13 @@ if (angle_has_build) {
    import("//build/config/win/visual_studio_version.gni")
  }
+  if (is_chromecast) {
+    angle_vulkan_display_mode = "headless"
+  }
  angle_use_x11 = use_x11 && !is_ggp
-  angle_use_vulkan_display = is_linux && !use_x11 && !is_ggp && !use_ozone
+  angle_use_vulkan_display =
+      is_linux && !use_x11 && !is_ggp && (!use_ozone || is_chromecast)
 } else {
  declare_args() {
    is_ubsan = false