Disable flaky InstallableManagerBrowserTest.CheckFavicon and add ASAN filter support (#33777)

Add InstallableManagerBrowserTest.CheckFavicon to browser_tests.filter
to disable this flaky upstream test. The test intermittently fails due
to favicon fetch timing issues. Already disabled on Mac upstream
(crbug.com/333331507).

Also add ASAN filter support to getApplicableFilters() in testUtils.js,
which was missing (only UBSAN and MSAN were supported).

Resolves https://github.com/brave/brave-browser/issues/52659

build/commands/lib/testUtils.js

@@ -84,6 +84,10 @@ const getApplicableFilters = (config, suite) => {
     possibleFilters.push([suite, targetPlatform, 'ubsan'].join('-'))
   }
 
+  if (config.is_asan) {
+    possibleFilters.push([suite, targetPlatform, 'asan'].join('-'))
+  }
+
   if (config.is_msan) {
     possibleFilters.push([suite, targetPlatform, 'msan'].join('-'))
   }

test/filters/browser_tests.filter

@@ -3506,3 +3506,8 @@
 # covering this - safe to disable the upstream one.
 # For more info, see https://github.com/brave/brave-browser/issues/46011
 -SecureDnsHandlerTest.OtherPoliciesSet
+
+# https://github.com/brave/brave-browser/issues/52659
+# Flaky favicon fetch failure. Also disabled on Mac upstream
+# (crbug.com/333331507).
+-InstallableManagerBrowserTest.CheckFavicon