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..f4e62b1b1d2c066b2c35a11c3e5ad5b7f93b109f 100644
--- a/extensions/common/extension.h
+++ b/extensions/common/extension.h
@@ -63,6 +63,7 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
   enum State {
     DISABLED = 0,
     ENABLED,
+    BLOCKED,
     // An external extension that the user uninstalled. We should not reinstall
     // such extensions on startup.
     EXTERNAL_EXTENSION_UNINSTALLED,
@@ -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;