Clean up documentation

BUG=406053

Review URL: https://codereview.chromium.org/514883002

Cr-Commit-Position: refs/heads/master@{#292234}

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

@@ -2897,7 +2897,7 @@ public class ContentViewCore
     }
 
     /**
-     * Return whether or not we should set accessibility focus on page load.
+     * Sets whether or not we should set accessibility focus on page load.
      * This only applies if an accessibility service like TalkBack is running.
      * This is desirable behavior for a browser window, but not for an embedded
      * WebView.