Relaunch Notification: Clean up

Move recommended timer to the desktop build because its usage in
Chrome OS was deleted. Update comments.

Bug: 963883
Change-Id: I05ece8ac88d5209b812f6a27bd72e69b96052705
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1674545
Commit-Queue: Roman Aleksandrov <raleksandrov@google.com>
Reviewed-by: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672033}

chrome/browser/ui/BUILD.gn

@@ -2929,8 +2929,6 @@ jumbo_split_static_library("ui") {
       "views/relaunch_notification/relaunch_notification_controller.h",
       "views/relaunch_notification/relaunch_notification_metrics.cc",
       "views/relaunch_notification/relaunch_notification_metrics.h",
-      "views/relaunch_notification/relaunch_recommended_timer.cc",
-      "views/relaunch_notification/relaunch_recommended_timer.h",
       "views/relaunch_notification/relaunch_required_timer.cc",
       "views/relaunch_notification/relaunch_required_timer.h",
       "views/relaunch_notification/relaunch_required_timer_internal.cc",
@@ -3208,6 +3206,8 @@ jumbo_split_static_library("ui") {
         "views/relaunch_notification/relaunch_notification_controller_platform_impl_desktop.h",
         "views/relaunch_notification/relaunch_recommended_bubble_view.cc",
         "views/relaunch_notification/relaunch_recommended_bubble_view.h",
+        "views/relaunch_notification/relaunch_recommended_timer.cc",
+        "views/relaunch_notification/relaunch_recommended_timer.h",
         "views/relaunch_notification/relaunch_required_dialog_view.cc",
         "views/relaunch_notification/relaunch_required_dialog_view.h",
         "views/screen_capture_notification_ui_views.cc",

chrome/browser/ui/views/relaunch_notification/relaunch_recommended_timer.h

@@ -11,8 +11,7 @@
 #include "chrome/browser/ui/views/relaunch_notification/wall_clock_timer.h"
 
 // Timer that handles notification title refresh for relaunch recommended
-// notification. Created either by RelaunchRecommendedBubbleView for Chrome
-// desktop or directly by the controller in the Chrome OS implementation.
+// notification. Created by RelaunchRecommendedBubbleView for Chrome desktop.
 // Title refresh is invoked with the |callback| provided at creation.
 class RelaunchRecommendedTimer {
  public:
@@ -44,8 +43,7 @@ class RelaunchRecommendedTimer {
   // A timer with which title refreshes are scheduled.
   WallClockTimer refresh_timer_;
 
-  // Callback which triggers the actual title update, which differs on Chrome
-  // for desktop vs for Chrome OS.
+  // Callback which triggers the actual title update on Chrome desktop.
   base::RepeatingClosure callback_;
 
   DISALLOW_COPY_AND_ASSIGN(RelaunchRecommendedTimer);