Restore AudioSandboxEnabledTest

The test was incorrectly removed at
https://chromium-review.googlesource.com/c/chromium/src/+/2302193

Bug: 1045846
Change-Id: I8c7f386a245b5a9fc9cc44c8976b220ed5b11b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2317879
Auto-Submit: Guido Urdaneta <guidou@chromium.org>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791794}

chrome/browser/policy/policy_browsertest.cc

@@ -72,6 +72,7 @@
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
 #include "chrome/browser/interstitials/security_interstitial_page_test_utils.h"
+#include "chrome/browser/media/audio_service_util.h"
 #include "chrome/browser/media/webrtc/webrtc_event_log_manager.h"
 #include "chrome/browser/net/prediction_options.h"
 #include "chrome/browser/policy/chrome_browser_policy_connector.h"
@@ -137,7 +138,6 @@
 #include "components/user_prefs/user_prefs.h"
 #include "components/variations/service/variations_service.h"
 #include "components/version_info/version_info.h"
-#include "content/public/browser/audio_service.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_task_traits.h"
 #include "content/public/browser/browser_thread.h"
@@ -2604,6 +2604,15 @@ class AudioSandboxEnabledTest
   policy::MockConfigurationPolicyProvider policy_provider_;
 };
 
+IN_PROC_BROWSER_TEST_P(AudioSandboxEnabledTest, IsRespected) {
+  base::Optional<bool> enable_sandbox_via_policy = GetParam();
+  bool is_sandbox_enabled_by_default =
+      base::FeatureList::IsEnabled(features::kAudioServiceSandbox);
+
+  ASSERT_EQ(enable_sandbox_via_policy.value_or(is_sandbox_enabled_by_default),
+            IsAudioServiceSandboxEnabled());
+}
+
 INSTANTIATE_TEST_SUITE_P(
     Enabled,
     AudioSandboxEnabledTest,