Fix broken build.

MyTracks/src/com/google/android/apps/mytracks/ChartActivity.java

@@ -455,7 +455,7 @@ public class ChartActivity extends Activity implements
   public boolean onOptionsItemSelected(MenuItem item) {
     switch (item.getItemId()) {
       case MyTracksConstants.MENU_CHART_SETTINGS:
-        MyTracks.getInstance().showDialogSafely(
+        MyTracks.getInstance().getDialogManager().showDialogSafely(
             DialogManager.DIALOG_CHART_SETTINGS);
         return true;
     }

MyTracks/src/com/google/android/apps/mytracks/MyTracks.java

@@ -1291,6 +1291,10 @@ public class MyTracks extends TabActivity implements OnTouchListener,
     this.chartActivity = chartActivity;
   }
 
+  public DialogManager getDialogManager() {
+    return dialogManager;
+  }
+
   public String getSendToMyMapsMapId() {
     return sendToMyMapsMapId;
   }