Visual improvements to text filtering in Ash overview mode

ash/wm/overview/window_selector.h

 // Copyright 2013 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_SELECTOR_H_
 #define ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 48 matching lines @@
     DOWN
   };
 
   typedef std::vector<aura::Window*> WindowList;
   typedef ScopedVector<WindowSelectorItem> WindowSelectorItemList;
 
   WindowSelector(const WindowList& windows,
                  WindowSelectorDelegate* delegate);
   virtual ~WindowSelector();
 
+  // Returns the height of the textfield used for text filtering.
+  int TextFilterHeight() const;
+
   // Cancels window selection.
   void CancelSelection();
 
   // Called when the last window selector item from a grid is deleted.
   void OnGridEmpty(WindowGrid* grid);
 
   // gfx::DisplayObserver:
   virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE;
   virtual void OnDisplayRemoved(const gfx::Display& display) OVERRIDE;
   virtual void OnDisplayMetricsChanged(const gfx::Display& display,
@@ skipping 28 matching lines @@
   // Hide and track all hidden windows not in the overview item list.
   void HideAndTrackNonOverviewWindows();
 
   // |focus|, restores focus to the stored window.
   void ResetFocusRestoreWindow(bool focus);
 
   // Helper function that moves the selection widget to |direction| on the
   // corresponding window grid.
   void Move(Direction direction, bool animate);
 
+  // Instantiates and returns the widget hosting the textfield used in
+  // text filtering.
+  views::Widget* CreateTextFilter(views::TextfieldController* controller,
+                                  aura::Window* root_window);
+
   // Tracks observed windows.
   std::set<aura::Window*> observed_windows_;
 
   // Weak pointer to the selector delegate which will be called when a
   // selection is made.
   WindowSelectorDelegate* delegate_;
 
   // A weak pointer to the window which was focused on beginning window
   // selection. If window selection is canceled the focus should be restored to
   // this window.
@@ skipping 25 matching lines @@
   size_t num_items_;
 
   // Indicates if we are showing the selection widget.
   bool showing_selection_widget_;
 
   // Window text filter widget. As the user writes on it, we filter the items
   // in the overview. It is also responsible for handling overview key events,
   // such as enter key to select.
   scoped_ptr<views::Widget> text_filter_widget_;
 
+  // The height in pixels of the text used in text filtering.
+  int text_height_;
+
   DISALLOW_COPY_AND_ASSIGN(WindowSelector);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_