--- a/browser/devtools/performance/modules/io.js
+++ b/browser/devtools/performance/modules/io.js
@@ -114,17 +114,16 @@ exports.PerformanceIO = PerformanceIO;
  */
 function isValidSerializerVersion (version) {
   return !!~[
     PERF_TOOL_SERIALIZER_LEGACY_VERSION,
     PERF_TOOL_SERIALIZER_CURRENT_VERSION
   ].indexOf(version);
 }
 
-
 /**
  * Takes recording data (with version `1`, from the original profiler tool), and
  * massages the data to be line with the current performance tool's property names
  * and values.
  *
  * @param object legacyData
  * @return object
  */

--- a/browser/devtools/performance/performance-controller.js
+++ b/browser/devtools/performance/performance-controller.js
@@ -245,17 +245,17 @@ let PerformanceController = {
    *
    * @param nsILocalFile file
    *        The file to import the data from.
    */
   importRecording: Task.async(function*(_, file) {
     let recording = this.createNewRecording();
     yield recording.importRecording(file);
 
-    this.emit(EVENTS.RECORDING_IMPORTED, recording.getAllData(), recording);
+    this.emit(EVENTS.RECORDING_IMPORTED, recording);
   }),
 
   /**
    * Creates a new RecordingModel, fires events and stores it
    * internally in the controller.
    *
    * @return RecordingModel
    *         The newly created recording model.

--- a/browser/devtools/performance/views/recordings.js
+++ b/browser/devtools/performance/views/recordings.js
@@ -146,22 +146,20 @@ let RecordingsView = Heritage.extend(Wid
     // Render the recording item with finalized information (timing, etc)
     this.finalizeRecording(recordingItem);
     this.forceSelect(recordingItem);
   },
 
   /**
    * Signals that a recording has been imported.
    *
-   * @param object recordingData
-   *        The profiler and refresh driver ticks data received from the front.
    * @param RecordingModel model
    *        The recording model containing data on the recording session.
    */
-  _onRecordingImported: function (_, recordingData, model) {
+  _onRecordingImported: function (_, model) {
     let recordingItem = this.addEmptyRecording(model);
     recordingItem.isRecording = false;
 
     // Immediately select the imported recording
     this.selectedItem = recordingItem;
 
     // Render the recording item with finalized information (timing, etc)
     this.finalizeRecording(recordingItem);