[Chromecast] Disable AAudio for better AV sync

Bug: 177786478
Test: QA test shows the av sync is improved after disabling it.
Change-Id: Ic9257ece4169b54b8b9126717657fb2abe80dcb5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2643402
Commit-Queue: Yuchen Liu <yucliu@chromium.org>
Commit-Queue: Sean Topping <seantopping@chromium.org>
Auto-Submit: Yuchen Liu <yucliu@chromium.org>
Reviewed-by: Sean Topping <seantopping@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845757}

chromecast/browser/cast_content_browser_client.cc

@@ -106,6 +106,7 @@
 #include "components/cdm/browser/cdm_message_filter_android.h"
 #include "components/crash/core/app/crashpad.h"
 #include "media/audio/android/audio_manager_android.h"
+#include "media/audio/audio_features.h"
 #else
 #include "chromecast/browser/memory_pressure_controller_impl.h"
 #endif  // defined(OS_ANDROID)
@@ -178,8 +179,10 @@ CastContentBrowserClient::CastContentBrowserClient(
       // TODO(juke): Reenable this after solving casting issue on LAN.
       blink::features::kMixedContentAutoupgrade,
 #if defined(OS_ANDROID)
-      ::media::kAudioFocusLossSuspendMediaSession,
-      ::media::kRequestSystemAudioFocus,
+          ::media::kAudioFocusLossSuspendMediaSession,
+          ::media::kRequestSystemAudioFocus,
+          // Disable AAudio improve AV sync performance.
+          ::features::kUseAAudioDriver,
 #endif
   });
 }