Refactor AB test participation code; add conversion code.

services/web/public/coffee/ide.coffee

@@ -81,12 +81,6 @@ define [
 		if $scope.user.signUpDate >= '2016-10-27'
 			$scope.shouldABTestPlans = true
 
-		$scope.shouldABAddCommentBtn = false
-		if $scope.user.signUpDate >= '2016-03-22'
-			$scope.shouldABAddCommentBtn = true
-			sixpack.participate "add-comment-btn", [ "default", "editor-corner" ], (variation) ->
-				$scope.variationABAddCommentBtn = variation
-
 		$scope.settings = window.userSettings
 		$scope.anonymous = window.anonymous
 

services/web/public/coffee/ide/review-panel/controllers/ReviewPanelController.coffee

@@ -4,7 +4,7 @@ define [
 	"ide/colors/ColorManager"
 	"ide/review-panel/RangesTracker"
 ], (App, EventEmitter, ColorManager, RangesTracker) ->
-	App.controller "ReviewPanelController", ($scope, $element, ide, $timeout, $http, $modal, event_tracking, localStorage) ->
+	App.controller "ReviewPanelController", ($scope, $element, ide, $timeout, $http, $modal, event_tracking, sixpack, localStorage) ->
 		$reviewPanelEl = $element.find "#review-panel"
 
 		$scope.SubViews =
@@ -29,13 +29,12 @@ define [
 			loadingThreads: false
 			newAddCommentUI: false # Test new UI for adding comments; remove afterwards.
 
-		if $scope.shouldABAddCommentBtn and $scope.variationABAddCommentBtn? == "editor-corner"
-			$scope.reviewPanel.newAddCommentUI = true
-			console.log "editor corner"
-		else
-			console.log "default"
-
-		console.log $scope.shouldABAddCommentBtn
+		$scope.shouldABAddCommentBtn = false
+		if $scope.user.signUpDate >= '2016-03-22'
+			sixpack.participate "add-comment-btn", [ "default", "editor-corner" ], (variation) ->
+				$scope.shouldABAddCommentBtn = true
+				$scope.variationABAddCommentBtn = variation
+				$scope.reviewPanel.newAddCommentUI = (variation == "editor-corner")
 
 		window.addEventListener "beforeunload", () ->
 			collapsedStates = {}
@@ -344,7 +343,9 @@ define [
 			$scope.$broadcast "comment:select_line"
 			$timeout () ->
 				$scope.$broadcast "review-panel:layout"
-		
+			if $scope.shouldABAddCommentBtn and !$scope.ui.reviewPanelOpen
+				sixpack.convert "add-comment-btn"
+
 		$scope.submitNewComment = (content) ->
 			return if !content? or content == ""
 			doc_id = $scope.editor.open_doc_id