Fix broken tests.

Review at http://gwt-code-reviews.appspot.com/1566803

Review by: jlabanca@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10695 8db76d5a-ed1c-0410-87a9-c151d255dfc7

user/src/com/google/gwt/user/cellview/client/DataGrid.java

diff --git a/user/src/com/google/gwt/user/cellview/client/DataGrid.java b/user/src/com/google/gwt/user/cellview/client/DataGrid.java
index dc28b39..d771ce7 100644
--- a/user/src/com/google/gwt/user/cellview/client/DataGrid.java
+++ b/user/src/com/google/gwt/user/cellview/client/DataGrid.java
@@ -78,8 +78,7 @@
  * 
  * @param <T> the data type of each row
  */
-public class DataGrid<T> extends AbstractCellTable<T> implements RequiresResize,
-    AbstractCellTable.TableSectionChangeHandler {
+public class DataGrid<T> extends AbstractCellTable<T> implements RequiresResize {
 
   /**
    * A ClientBundle that provides images for this widget.
@@ -708,21 +707,6 @@
   }
 
   @Override
-  public void onTableBodyChange(TableSectionElement newTBody) {
-    tableData.section = newTBody;
-  }
-
-  @Override  
-  public void onTableFootChange(TableSectionElement newTFoot) {
-    tableFooter.section = newTFoot;
-  }
-
-  @Override
-  public void onTableHeadChange(TableSectionElement newTHead) {
-    tableHeader.section = newTHead;
-  }
-
-  @Override
   public void removeColumnStyleName(int index, String styleName) {
     tableHeader.removeColumnStyleName(index, styleName);
     tableFooter.removeColumnStyleName(index, styleName);