Bug 1277524 - Add moz-extension to the list of potentially trustworthy origins. r=tanvi

MozReview-Commit-ID: BvR7Xb0AE9N

--HG--
extra : rebase_source : dfe2d600b15a6cffd49be454b3394106c3ff9bb3
extra : histedit_source : 8b03564ebced1305ce79652d904e7bb95a92a2e8

dom/security/nsContentSecurityManager.cpp

@@ -645,6 +645,7 @@ nsContentSecurityManager::IsOriginPotentiallyTrustworthy(nsIPrincipal* aPrincipa
       scheme.EqualsLiteral("file") ||
       scheme.EqualsLiteral("resource") ||
       scheme.EqualsLiteral("app") ||
+      scheme.EqualsLiteral("moz-extension") ||
       scheme.EqualsLiteral("wss")) {
     *aIsTrustWorthy = true;
     return NS_OK;

dom/security/test/unit/test_isOriginPotentiallyTrustworthy.js

@@ -27,6 +27,7 @@ add_task(function* test_isOriginPotentiallyTrustworthy() {
     ["http://127.0.0.1/", true],
     ["file:///", true],
     ["resource:///", true],
+    ["moz-extension://", true],
     ["about:config", false],
     ["urn:generic", false],
   ]) {