Bug 1933524 - Flip chatbot default and remove from Labs in Nightly and Release r=ngrato,settings-reviewers,sidebar-reviewers,nsharpley,firefox-desktop-core-reviewers ,firefox-ai-ml-reviewers,jsudiaman,Gijs,sclements,desktop-theme-reviewers,hjones

Flip default pref to true and remove featuregate entry/strings/styles. Switch actor enabled to actual opt-in / provider. Update sidebar tests for chatbot as default tool.

Differential Revision: https://phabricator.services.mozilla.com/D233204

UltraBlame original commit: 41885e5223b951cb8f725ee594ff963c5036d7a5

Author: marco-c

browser/app/profile/firefox.js

@@ -24389,7 +24389,7 @@ chat
 .
 enabled
 "
-false
+true
 )
 ;
 pref

browser/base/content/test/static/browser_parsable_css.js

@@ -1760,6 +1760,34 @@ isFromDevTools
 :
 true
 }
+/
+/
+Bug
+1908535
+to
+refactor
+form
+components
+to
+use
+this
+token
+{
+propName
+:
+"
+-
+-
+input
+-
+space
+-
+block
+"
+isFromDevTools
+:
+false
+}
 ]
 ;
 /

browser/components/BrowserGlue.sys.mjs

@@ -4422,17 +4422,113 @@ scroll
 allFrames
 :
 true
-enablePreference
-:
+onAddActor
+(
+register
+unregister
+)
+{
+/
+/
+Register
+the
+actor
+if
+we
+have
+a
+provider
+set
+and
+not
+yet
+registered
+const
+maybeRegister
+=
+(
+val
+prev
+)
+=
+>
+{
+if
+(
+val
+)
+{
+if
+(
+!
+prev
+)
+{
+register
+(
+)
+;
+}
+}
+else
+{
+unregister
+(
+)
+;
+}
+}
+;
+/
+/
+Detect
+pref
+changes
+and
+handle
+initial
+value
+XPCOMUtils
+.
+defineLazyPreferenceGetter
+(
+this
+"
+_pref
+"
 "
 browser
 .
 ml
 .
 chat
 .
-enabled
+provider
+"
 "
+"
+(
+_pref
+prev
+val
+)
+=
+>
+maybeRegister
+(
+val
+prev
+)
+)
+;
+maybeRegister
+(
+this
+.
+_pref
+)
+;
+}
 }
 LightweightTheme
 :

browser/components/genai/tests/browser/browser_genai_actors.js

@@ -164,9 +164,10 @@ ml
 .
 chat
 .
-enabled
+provider
+"
+"
 "
-false
 ]
 ]
 }