DevTools: Fix JSDoc and code landed in r169951.

R=pfeldman
BUG=337138
NOTRY=true

Review URL: https://codereview.chromium.org/212503002

git-svn-id: svn://svn.chromium.org/blink/trunk@170034 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/PowerProfiler.js

@@ -33,7 +33,7 @@ WebInspector.PowerProfiler.prototype = {
 
 /**
  * @constructor
- * @implements {WebInspector.PowerEventDispatcher}
+ * @implements {PowerAgent.Dispatcher}
  */
 WebInspector.PowerDispatcher = function(profiler)
 {
@@ -44,7 +44,7 @@ WebInspector.PowerDispatcher = function(profiler)
 WebInspector.PowerDispatcher.prototype = {
     dataAvailable: function(events)
     {
-        for (var i in events)
+        for (var i = 0; i < events.length; ++i)
             this._profiler.dispatchEventToListeners(WebInspector.PowerProfiler.EventTypes.PowerEventRecorded, events[i]);
     }
 }

third_party/WebKit/Source/devtools/front_end/TimelinePowerOverview.js

@@ -15,7 +15,7 @@ WebInspector.TimelinePowerOverviewDataProvider = function()
 
 WebInspector.TimelinePowerOverviewDataProvider.prototype = {
     /**
-     * @return {Array.<PowerEvent>}
+     * @return {!Array.<!PowerAgent.PowerEvent>}
      */
     records : function()
     {
@@ -25,8 +25,8 @@ WebInspector.TimelinePowerOverviewDataProvider.prototype = {
 
     _onRecordAdded: function(event)
     {
-        // "value" of original PowerEvent means the anverage power between previous sampling to current one.
-        // Here, it is converted to anverage power between current sampling to next one.
+        // "value" of original PowerEvent means the average power between previous sampling to current one.
+        // Here, it is converted to average power between current sampling to next one.
         var record = event.data;
         var length = this._records.length;
         if (length)