Temporarily disable extensions and sync while a profile is locked - Profiles Approach

extensions/common/extension.h

Index: extensions/common/extension.h
diff --git a/extensions/common/extension.h b/extensions/common/extension.h
index 4c76478b50de4fb8371c0ba542fa7e5953ef3e3a..8d85e85038fa8ab73f75841342ebf5499bff961a 100644
--- a/extensions/common/extension.h
+++ b/extensions/common/extension.h
@@ -69,6 +69,7 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
     // DEPRECATED: Special state for component extensions.
     // Maintained as a placeholder since states may be stored to disk.
     ENABLED_COMPONENT_DEPRECATED,
+    // Add new states here as this enum is stored in prefs.
     NUM_STATES
   };
 
@@ -539,6 +540,7 @@ struct UnloadedExtensionInfo {
     REASON_TERMINATE,         // Extension has terminated.
     REASON_BLACKLIST,         // Extension has been blacklisted.
     REASON_PROFILE_SHUTDOWN,  // Profile is being shut down.
+    REASON_LOCK_ALL,          // All extensions for the profile are blocked.
   };
 
   Reason reason;