Turn off groups in task manager, as we're rolling out that functionality in

chrome/browser/ui/views/task_manager_view.cc

Index: chrome/browser/ui/views/task_manager_view.cc
diff --git a/chrome/browser/ui/views/task_manager_view.cc b/chrome/browser/ui/views/task_manager_view.cc
index 5b6da9fb6bf01fdbd10bca79c2808ca0c3f03ac1..99061c6dc00bac4eaec0915dc5d6f2fc199f8888 100644
--- a/chrome/browser/ui/views/task_manager_view.cc
+++ b/chrome/browser/ui/views/task_manager_view.cc
@@ -37,10 +37,6 @@
 static const int kDefaultWidth = 460;
 static const int kDefaultHeight = 270;
 
-// The group IDs used to separate background pages from foreground tabs.
-static const int kBackgroundGroupId = 0;
-static const int kForegroundGroupId = 1;
-
 namespace {
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -64,13 +60,9 @@ class TaskManagerTableModel : public views::GroupTableModel,
   int RowCount();
   std::wstring GetText(int row, int column);
   SkBitmap GetIcon(int row);
-  bool ShouldIndent(int row);
   void GetGroupRangeForItem(int item, views::GroupRange* range);
   void SetObserver(TableModelObserver* observer);
   virtual int CompareValues(int row1, int row2, int column_id);
-  virtual Groups GetGroups();
-  virtual bool HasGroups();
-  virtual int GetGroupID(int row);
 
   // TaskManagerModelObserver.
   virtual void OnModelChanged();
@@ -158,9 +150,6 @@ SkBitmap TaskManagerTableModel::GetIcon(int row) {
   return model_->GetResourceIcon(row);
 }
 
-bool TaskManagerTableModel::ShouldIndent(int row) {
-  return !model_->IsResourceFirstInGroup(row);
-}
 
 void TaskManagerTableModel::GetGroupRangeForItem(int item,
                                                  views::GroupRange* range) {
@@ -177,41 +166,6 @@ int TaskManagerTableModel::CompareValues(int row1, int row2, int column_id) {
   return model_->CompareValues(row1, row2, column_id);
 }
 
-bool TaskManagerTableModel::HasGroups() {
-  return true;
-}
-
-int TaskManagerTableModel::GetGroupID(int row) {
-  // If there are any background resources in the group range, put the whole
-  // range in the background group.
-  std::pair<int, int> range_pair = model_->GetGroupRangeForResource(row);
-  for (int i = range_pair.first;
-       i < range_pair.first + range_pair.second;
-       ++i) {
-    if (model_->IsBackgroundResource(i))
-      return kBackgroundGroupId;
-  }
-  return kForegroundGroupId;
-}
-
-TableModel::Groups TaskManagerTableModel::GetGroups() {
-  Groups groups;
-
-  Group background_group;
-  background_group.title =
-      l10n_util::GetString(IDS_TASK_MANAGER_BACKGROUND_SEPARATOR);
-  background_group.id = kBackgroundGroupId;
-  groups.push_back(background_group);
-
-  Group foreground_group;
-  foreground_group.title =
-      l10n_util::GetString(IDS_TASK_MANAGER_FOREGROUND_SEPARATOR);
-  foreground_group.id = kForegroundGroupId;
-  groups.push_back(foreground_group);
-
-  return groups;
-}
-
 void TaskManagerTableModel::OnModelChanged() {
   if (observer_)
     observer_->OnModelChanged();
@@ -358,7 +312,7 @@ void TaskManagerView::Init() {
   table_model_.reset(new TaskManagerTableModel(model_));
 
   // Page column has no header label.
-  columns_.push_back(TableColumn(IDS_TASK_MANAGER_PAGE_COLUMN, L"",
+  columns_.push_back(TableColumn(IDS_TASK_MANAGER_PAGE_COLUMN,
                                  TableColumn::LEFT, -1, 1));
   columns_.back().sortable = true;
   columns_.push_back(TableColumn(IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN,
@@ -398,7 +352,7 @@ void TaskManagerView::Init() {
 
   tab_table_ = new views::GroupTableView(table_model_.get(), columns_,
                                          views::ICON_AND_TEXT, false, true,
-                                         true, false);
+                                         true, true);
 
   // Hide some columns by default
   tab_table_->SetColumnVisibility(IDS_TASK_MANAGER_PROCESS_ID_COLUMN, false);