update millix integration

chrome/browser/resources/millix/millix_app.js

@@ -38,6 +38,7 @@ function refreshIframe() {
     } else {
         iframe = document.createElement('iframe');
         iframe.id = 'millix_frame';
+        iframe.allow = "clipboard-write"
         iframe.onload = onFrameReady;
         iframe.src = `chrome-untrusted://millix/${page}`
         document.body.appendChild(iframe);

chrome/browser/ui/webui/millix/untrusted_millix_app.cc

@@ -53,7 +53,7 @@ UntrustedMillixAppUI::UntrustedMillixAppUI(content::WebUI* web_ui)
         network::mojom::CSPDirectiveName::DefaultSrc, "default-src 'self' 'unsafe-inline';");
 
   untrusted_source->OverrideContentSecurityPolicy(
-        network::mojom::CSPDirectiveName::DefaultSrc, "img-src 'self' data: blob:;");
+        network::mojom::CSPDirectiveName::ImgSrc, "img-src 'self' data: blob:;");
 
   untrusted_source->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ScriptSrc, "script-src tangled://resources 'self' 'unsafe-inline';");