Record API fix adding FirstRun, and allowing repeat-count in capture (plus some browsertests along …

chrome/common/extensions/api/experimental_record.json

 [
   {
     "namespace": "experimental.record",
     "types": [
       {
         "id": "SessionDetails",
         "type": "object",
         "description": "",
         "properties": {
-          "extensionPath": {"type": "string", "optional": true, "description": "A path to an extension to run in the session. Should be an unpacked extension."},
-          "repeatCount": {"type": "integer", "optional": true, "description": "Number of times to repeat sequence. Defaults to 1."}
+          "extensionPath": {"type": "string", "optional": true, "description": "A path to an extension to run in the session. Should be an unpacked extension."}
         }
       },
       {
         "id": "ReplayURLsResult",
         "type": "object",
         "description": "",
         "properties": {
           "runTime": {"type": "integer", "description": "Time in milliseconds to complete all runs."},
           "stats": {"type": "string", "description": "Full multiline dump of output stats."},
           "errors": {"type": "array", "items": {"type": "string"}, "description": "List of errors during replay."}
         }
       }
     ],
     "functions": [
       {
         "name": "captureURLs",
         "description": "",
         "type": "function",
         "parameters": [
           {
             "type": "array",
             "items": {"type": "string"},
             "name": "urls"
           },
           {
             "type": "string",
             "name": "cacheDirectoryPath"
           },
           {
-            "$ref": "SessionDetails",
-            "name": "details",
-            "optional": true
+            "type": "integer", 
+            "name": "repeatCount" 
           },
           {
             "name": "callback",
             "type": "function",
             "description": "Called when capture has completed.",
             "optional": true,
             "parameters": [
               {
                 "type": "array",
                 "items": {"type": "string"},
@@ skipping 11 matching lines @@
           {
             "type": "array",
             "items": {"type": "string"},
             "name": "urls"
           },
           {
             "type": "string",
             "name": "captureDirectoryPath"
           },
           {
+            "type": "integer", 
+            "name": "repeatCount" 
+          },
+          {
             "$ref": "SessionDetails",
             "name": "details",
             "optional": true
           },
           {
             "name": "callback",
             "type": "function",
             "description": "Called when playback has completed.",
             "parameters": [{"$ref": "ReplayURLsResult", "name": "result"}]
           }
         ]
       }
     ]
   }
 ]