Remove GeckoView and Chrome Custom Tabs engines, retain WebView only

[Copilot]

Removes all browser engine implementations except WebView to simplify the codebase.

Files Deleted

• GeckoViewActivity.java - Firefox/GeckoView engine (403 lines)
• ChromeTabActivity.java - Chrome Custom Tabs implementation (70 lines)

Dependencies Removed

• androidx.browser:browser:1.7.0
• org.mozilla.geckoview:geckoview:143.0.20250929153833
• Mozilla Maven repository

MainActivity Changes

• Removed multi-engine UI selection (RadioGroup with 3 options → single WebView option)
• Removed browserMode parameter from createShortcut() and fetchFaviconAndCreateShortcut()
• Eliminated switch-case logic for engine selection

// Before: Multiple engine support
switch (browserMode) {
    case 1: intent = new Intent(this, ChromeTabActivity.class); break;
    case 3: intent = new Intent(this, GeckoViewActivity.class); break;
    case 2: intent = new Intent(this, WebViewActivity.class); break;
}

// After: WebView only
Intent intent = new Intent(this, WebViewActivity.class)
    .setAction(Intent.ACTION_VIEW)
    .setData(Uri.parse(url + "#desktopMode=true"));

Retained

• WebViewActivity (primary browser)
• DownloadActivity
• FIDO2 dependency for WebAuthn support

Net Change: -576 lines across 5 files

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.google.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -XX:MaxMetaspaceSize=384m -XX:+HeapDumpOnOutOfMemoryError -Xms256m -Xmx512m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.9-bin/90cnw93cvbtalezasaz0blq0a/gradle-8.9/lib/gradle-daemon-main-8.9.jar (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

移除除webview以外的所有无用的引擎

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