test($parse): ensure CSP code paths are used when testing

Previously, the test suite was not actually taking CSP-mode paths when we were expecting it to.

Numerous CSP-mode tests are failing, working on fixing these.

Author: caitp

test/ng/parseSpec.js

@@ -222,7 +222,12 @@ describe('parser', function() {
         window.document.securityPolicy = originalSecurityPolicy;
       });
 
-      beforeEach(module(provideLog));
+      beforeEach(module(function($provide) {
+        $provide.decorator('$sniffer', function($delegate) {
+          $delegate.csp = cspEnabled;
+          return $delegate;
+        });
+      }, provideLog));
 
       beforeEach(inject(function ($rootScope) {
         scope = $rootScope;