Added text filtering to Overview Mode

ash/wm/overview/window_grid.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_WM_OVERVIEW_WINDOW_GRID_H_
 #define ASH_WM_OVERVIEW_WINDOW_GRID_H_
 
 #include <vector>
 
 #include "ash/wm/overview/window_selector.h"
@@ skipping 48 matching lines @@
   // this window grid bounds.
   bool Move(WindowSelector::Direction direction);
 
   // Returns the target selected window, or NULL if there is none selected.
   WindowSelectorItem* SelectedWindow() const;
 
   // Returns true if a window is contained in any of the WindowSelectorItems
   // this grid owns.
   bool Contains(const aura::Window* window) const;
 
+  // Dims the items that do not match the given pattern and prevents their

[flackr, 2014/06/26 17:33:07]

nit:s/that do not match the given pattern/whose titles do not contain |pattern|

[Nina, 2014/06/27 15:20:39]

Done.

+  // selection. The pattern has its accents removed and is converted to
+  // lowercase in a l10n sensitive context.
+  void FilterItems(const base::string16& pattern);
+
   // Returns true if the grid has no more windows.
   bool empty() const { return window_list_.empty(); }
 
   // Returns how many window selector items are in the grid.
   size_t size() const { return window_list_.size(); }
 
   // Returns true if the selection widget is active.
   bool is_selecting() const { return selection_widget_ != NULL; }
 
   // Returns the root window in which the grid displays the windows.
@@ skipping 38 matching lines @@
 
   // Vector containing the observed windows.
   std::set<aura::Window*> observed_windows_;
 
   // Widget that indicates to the user which is the selected window.
   scoped_ptr<views::Widget> selection_widget_;
 
   // Current selected window position.
   size_t selected_index_;
 
+  // Indicates if there is at least one undimmed item in the overview.
+  bool has_active_item_;
+
   // Number of columns in the grid.
   size_t num_columns_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowGrid);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_GRID_H_