Enable/disable extensions upon changes in blacklist.

BUG=267514

Review URL: https://codereview.chromium.org/98463005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247263 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/extensions/common/extension.h b/extensions/common/extension.h
index fb2cf4c..ead3dd0f 100644
--- a/extensions/common/extension.h
+++ b/extensions/common/extension.h
@@ -90,9 +90,9 @@
     DISABLE_UNKNOWN_FROM_SYNC = 1 << 5,
     DISABLE_PERMISSIONS_CONSENT = 1 << 6,  // Unused - abandoned experiment.
     DISABLE_KNOWN_DISABLED = 1 << 7,
-
-    // Disabled because we could not verify the install.
-    DISABLE_NOT_VERIFIED = 1 << 8,
+    DISABLE_NOT_VERIFIED = 1 << 8,  // Disabled because we could not verify
+                                    // the install.
+    DISABLE_GREYLIST = 1 << 9
   };
 
   enum InstallType {