Bug 1478443 - Fix Raptor webaudio benchmark (add webaudio back to the raptor webext manifest); r=ahal

MozReview-Commit-ID: FkrvLVKtKBh

--HG--
extra : rebase_source : 1de846f0f78d5fafea8e169d7b37f0d6a5a276ee

testing/raptor/webext/raptor/manifest.json

@@ -23,7 +23,8 @@
       "matches": ["*://*/Speedometer/index.html*",
                   "*://*/StyleBench/*",
                   "*://*/MotionMark/*",
-                  "*://*/SunSpider/*"],
+                  "*://*/SunSpider/*",
+                  "*://*/webaudio/*"],
       "js": ["benchmark-relay.js"]
     }
   ],