Added ActivityLog tests and associated bugfixes/extra logging.

chrome/renderer/resources/extensions/binding.js

Index: chrome/renderer/resources/extensions/binding.js
diff --git a/chrome/renderer/resources/extensions/binding.js b/chrome/renderer/resources/extensions/binding.js
index 80c81242e7d2ca63da64bb1a40bcb68829ee973e..d2a2dc8d22871caac3c9a02010681ad1ea6f62c0 100644
--- a/chrome/renderer/resources/extensions/binding.js
+++ b/chrome/renderer/resources/extensions/binding.js
@@ -53,14 +53,15 @@ APIFunctions.prototype.setHook_ =
 APIFunctions.prototype.setHandleRequest =
     function(apiName, customizedFunction) {
   var prefix = this.namespace;
+  var slicer = Array.prototype.slice;
   return this.setHook_(apiName, 'handleRequest',
     function() {
       var ret = customizedFunction.apply(this, arguments);
       // Logs API calls to the Activity Log if it doesn't go through an
       // ExtensionFunction.
       if (!sendRequestHandler.getCalledSendRequest())
-        logActivity(extensionId, prefix + "." + apiName,
-            Array.prototype.slice.call(arguments));
+        logActivity("API", extensionId, prefix + "." + apiName,
+            slicer.call(arguments));
       return ret;
     });
 };