Review Mozilla 1974744: Remove deprecated "web-extension-on-update-prompt" code in v144 before Gecko version gets increase to 145 on 2025-09-15

🔍 Bugzilla Audit

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1974744

Description

This created an error when trying to build the 144 rebase for the first time.

 1:30.94 FAILURE: Build failed with an exception.
 1:30.94 * What went wrong:
 1:30.94 Execution failed for task ':geckoview:compileDebugJavaWithJavac'.
 1:30.94 > Compilation failed; see the compiler output below.
 1:30.94   Note: Recompile with -Xlint:deprecation for details.
 1:30.94   /home/piero/Tor/rebases/build/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebExtensionController.java:1258: error: cannot find symbol
 1:30.94       if (promptBypass(currentExtension, callback)) {
 1:30.94                        ^
 1:30.94     symbol:   variable currentExtension
 1:30.94     location: class WebExtensionController
 1:30.94   Note: Some input files use or override a deprecated API.
 1:30.94   1 error

The reason is that 222fddbe removed currentExtension and updatedExtension in favor of just extension.

We might want to have a deeper look at the thing though.

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