Change Javadocs to fix SDK build

Remove some hidden reference and update links to other classes and
methods.

Change-Id: I4b6561f1bac07329d75da13f72496aa7d5b20a62

core/java/android/backup/BackupDataInput.java

@@ -133,7 +133,7 @@ public class BackupDataInput {
 
     /**
      * Consume the current record's data without actually reading it into a buffer
-     * for further processing.  This allows a {@link android.backup.BackupAgent} to
+     * for further processing.  This allows a {@link android.app.BackupAgent} to
      * efficiently discard obsolete or otherwise uninteresting records during the
      * restore operation.
      * 

core/java/android/backup/RestoreSession.java

@@ -63,7 +63,7 @@ public class RestoreSession {
      *
      * @return Zero on success; nonzero on error.  The observer will only receive
      *   progress callbacks if this method returned zero.
-     * @param token The token from {@link getAvailableRestoreSets()} corresponding to
+     * @param token The token from {@link #getAvailableRestoreSets()} corresponding to
      *   the restore set that should be used.
      * @param observer If non-null, this binder points to an object that will receive
      *   progress callbacks during the restore operation.
@@ -120,8 +120,7 @@ public class RestoreSession {
      * object is no longer valid.
      *
      * <p><b>Note:</b> The caller <i>must</i> invoke this method to end the restore session,
-     *   even if {@link #getAvailableRestoreSets()} or
-     *   {@link #restorePackage(long, String, RestoreObserver)} failed.
+     *   even if {@link #restorePackage(String, RestoreObserver)} failed.
      */
     public void endRestoreSession() {
         try {

core/java/android/text/style/LeadingMarginSpan.java

@@ -45,7 +45,7 @@ extends ParagraphStyle
 
     /**
      * Renders the leading margin.  This is called before the margin has been
-     * adjusted by the value returned by {@link getLeadingMargin(boolean)}.
+     * adjusted by the value returned by {@link #getLeadingMargin(boolean)}.
      * 
      * @param c the canvas
      * @param p the paint. The this should be left unchanged on exit.