partition-alloc: disable on android-x86

Weblayer seems to be triggering a crash with this config.


BUG=1166748
TEST=none

No-Try: true
Change-Id: I6fa2ae167347a1a72905be846946c6037443fb6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2629663Reviewed-by: Will Harris <wfh@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843862}

base/allocator/allocator.gni

@@ -18,10 +18,12 @@ if ((is_linux || is_chromeos || is_android || is_apple ||
   _default_use_allocator_shim = false
 }
 
-if (_default_use_allocator_shim && (is_win || is_android)) {
+# TODO(https://crbug.com/1166748): android/x86 is temporarily disabled.
+if (_default_use_allocator_shim &&
+    (is_win || (is_android && target_cpu != "x86"))) {
   _default_allocator = "partition"
-} else if (is_apple || _is_using_sanitizers || is_win || is_fuchsia ||
-           ((is_linux || is_chromeos) && target_cpu == "arm64") ||
+} else if (is_android || is_apple || _is_using_sanitizers || is_win ||
+           is_fuchsia || ((is_linux || is_chromeos) && target_cpu == "arm64") ||
            (is_cast_audio_only && target_cpu == "arm")) {
   # Temporarily disable tcmalloc on arm64 linux to get rid of compilation
   # errors.