author: Andres Salomon <dilinger@debian.org>
description: delete ~/.config/chromium/screen_ai and don't download libchromescreenai.so

This fixes https://bugs.debian.org/1066910

Chromium will download libchromescreenai.so (an opaque binary blob that
does OCR and other things) without warning the user when you
open a PDF in "reading mode". We don't actually know what's in the
binary blob, so we disable the ScreenAI service right up front (and
as an added benefit, that deletes everything in ~/.config/chromium/screen_ai


--- a/chrome/browser/component_updater/screen_ai_component_installer.cc
+++ b/chrome/browser/component_updater/screen_ai_component_installer.cc
@@ -143,8 +143,7 @@ void ScreenAIComponentInstallerPolicy::D
 void ManageScreenAIComponentRegistration(ComponentUpdateService* cus,
                                          PrefService* local_state) {
   if (screen_ai::ScreenAIInstallState::ShouldInstall(local_state)) {
-    RegisterScreenAIComponent(cus);
-    return;
+    // don't actually register the service - we don't want the binary blob
   }
 
   // Clean up.