Enables EXTERNAL_COMPONENT extensions in incognito by default.

chrome/browser/extensions/extension_util.cc

Index: chrome/browser/extensions/extension_util.cc
diff --git a/chrome/browser/extensions/extension_util.cc b/chrome/browser/extensions/extension_util.cc
index 4a861653b6ebb4e3906532324f16a8e501d3f259..97796a6d4d3e7ad22c34607874c6c10287733b2e 100644
--- a/chrome/browser/extensions/extension_util.cc
+++ b/chrome/browser/extensions/extension_util.cc
@@ -126,8 +126,10 @@ bool IsIncognitoEnabled(const std::string& extension_id,
       return false;
     // If this is an existing component extension we always allow it to
     // work in incognito mode.
-    if (extension->location() == Manifest::COMPONENT)
+    if (extension->location() == Manifest::COMPONENT ||
+        extension->location() == Manifest::EXTERNAL_COMPONENT) {
       return true;
+    }
     if (IsWhitelistedForIncognito(extension))
       return true;
   }