Add more browser tests for Task Manager.

TEST=Covered by browser_tests.
http://crbug.com/12127

Review URL: http://codereview.chromium.org/155433

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20786 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 3 deletions

diff --git a/chrome/browser/views/task_manager_view.cc b/chrome/browser/views/task_manager_view.cc
index a9cd9e6..52a14bd 100644
--- a/chrome/browser/views/task_manager_view.cc
+++ b/chrome/browser/views/task_manager_view.cc
@@ -52,9 +52,12 @@ class TaskManagerTableModel : public views::GroupTableModel,
   explicit TaskManagerTableModel(TaskManagerModel* model)
       : model_(model),
         observer_(NULL) {
-    model->SetObserver(this);
+    model_->AddObserver(this);
+  }
+
+  ~TaskManagerTableModel() {
+    model_->RemoveObserver(this);
   }
-  ~TaskManagerTableModel() {}
 
   // GroupTableModel.
   int RowCount();
@@ -71,7 +74,7 @@ class TaskManagerTableModel : public views::GroupTableModel,
   virtual void OnItemsRemoved(int start, int length);
 
  private:
-  const TaskManagerModel* model_;
+  TaskManagerModel* model_;
   TableModelObserver* observer_;
 };