Fix the comment of RegisterTemporaryImage()

Change-Id: Ifd612cc9b4370c4fb2a9f7be54fd6528f7b4cda5
Reviewed-on: https://chromium-review.googlesource.com/c/1316711
Commit-Queue: Finnur Thorarinsson <finnur@chromium.org>
Reviewed-by: Finnur Thorarinsson <finnur@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605302}

chrome/browser/notifications/win/notification_image_retainer.h

@@ -48,9 +48,8 @@ class NotificationImageRetainer {
 
   // Stores an |image| on disk in a temporary (short-lived) file. Returns the
   // path to the file created, which will be valid for a few seconds only. It
-  // will be deleted either after a short timeout or after a restart of Chrome
-  // (the next time this function is called). The function returns an empty
-  // FilePath if file creation fails.
+  // will be deleted either after a short timeout or after a restart of Chrome.
+  // The function returns an empty FilePath if file creation fails.
   virtual base::FilePath RegisterTemporaryImage(const gfx::Image& image);
 
   // Returns a closure that, when run, performs cleanup operations. This closure