Fix incorrect comment for AddToHomeScreenManager::Observer::onReadyToAdd.

chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java
index ffec6c8fee258c240d3a8e8ec98952d9f7abb08d..a7f07551932c35eb78e7b2f09b3dbb6acb3ffff0 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/AddToHomescreenManager.java
@@ -23,7 +23,7 @@ public class AddToHomescreenManager {
 
         /**
          * Called once native has finished fetching the homescreen shortcut's data (like the Web
-         * Manifest) and is ready for {@link AddToHomescreenDelegate#addShortcut()} to be called.
+         * Manifest) and is ready for {@link AddToHomescreenManager#addShortcut()} to be called.

[gone, 2016/09/19 18:16:34]

Still not quite right; Eclipse will probably still complain about the argument
list being wrong.  Try {@link #addShortcut}.

          * @param icon Icon to use in the launcher.
          */
         void onReadyToAdd(Bitmap icon);