fix($sce): fix adjustMatcher to replace multiple '*' and '**'

`adjustMatcher` was only replacing the first occurrences of '*' and '**'
that were found in whitelisted and blacklisted url strings.

Closes ##7897

Author: santialbo

src/ng/sce.js

@@ -47,8 +47,8 @@ function adjustMatcher(matcher) {
           'Illegal sequence *** in string matcher.  String: {0}', matcher);
     }
     matcher = escapeForRegexp(matcher).
-                  replace('\\*\\*', '.*').
-                  replace('\\*', '[^:/.?&;]*');
+                  replace(/\\\*\\\*/g, '.*').
+                  replace(/\\\*/g, '[^:/.?&;]*');
     return new RegExp('^' + matcher + '$');
   } else if (isRegExp(matcher)) {
     // The only other type of matcher allowed is a Regexp.

test/ng/sceSpecs.js

@@ -334,6 +334,10 @@ describe('SCE', function() {
         expect(adjustMatcher(/^a.*b$/).exec('a.b')).not.toBeNull();
         expect(adjustMatcher(/^a.*b$/).exec('-a.b-')).toBeNull();
       });
+
+      it('should should match * and **', function() {
+        expect(adjustMatcher('*://*.example.com/**').exec('http://www.example.com/path')).not.toBeNull();
+      });
     });
 
     describe('regex matcher', function() {