Disable ANGLE's VK backend on official Chrome Android builds.

ANGLE's VK backend induces a memory and binary size regression due to global initializers in glslang/spirvtools. Disable it on Android Chrome official builds. Bug: chromium:1172451 Change-Id: I08d77cf11e20b393c0faf7c85d08c92061e5a09b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2969385Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>

Disable ANGLE's VK backend on official Chrome Android builds.
dc334829 · Geoff Lang · Angle LUCI CQ · 97fca0c6 · dc334829 · dc334829
Commit dc334829 authored Jun 17, 2021 by Geoff Lang Committed by Angle LUCI CQ Jun 17, 2021
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DevSetupAndroid.md doc/DevSetupAndroid.md +2 -1

angle.gni gni/angle.gni +1 -0

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--- a/doc/DevSetupAndroid.md
+++ b/doc/DevSetupAndroid.md
@@ -195,10 +195,11 @@ gn args --list <dir>
 ### Performance config
 This config is designed to get maximum performance by disabling debug configs and validation layers.
-Note: The oddly named `is_official_build` is a more aggressive optimization level than `Release`. Its names is historical.
+Note: The oddly named `is_official_build` is a more aggressive optimization level than `Release`. Its name is historical.
 ```
 target_os = "android"
 target_cpu = "arm64"
+angle_enable_vulkan = true
 is_component_build = false
 is_official_build = true
 is_debug = false

--- a/gni/angle.gni
+++ b/gni/angle.gni
@@ -125,6 +125,7 @@ declare_args() {
  angle_enable_vulkan =
      angle_has_build &&
+      !(is_android && build_with_chromium && is_official_build) &&
      ((is_win && !angle_is_winuwp) ||
       (is_linux && (angle_use_x11 || angle_use_vulkan_display) &&
        !is_chromeos) || is_android || is_fuchsia || is_ggp || is_mac)