Revert of Cros Tablet Window management - Split Screen part II

ash/wm/overview/window_grid.h

Index: ash/wm/overview/window_grid.h
diff --git a/ash/wm/overview/window_grid.h b/ash/wm/overview/window_grid.h
index 7164cfda094f37fe94a79b3387567f210ef0871e..a0352d94aa4eb33af44d92b458b102127f1b3dfa 100644
--- a/ash/wm/overview/window_grid.h
+++ b/ash/wm/overview/window_grid.h
@@ -16,7 +16,6 @@
 #include "base/macros.h"
 #include "base/scoped_observer.h"
 #include "ui/aura/window_observer.h"
-#include "ui/gfx/geometry/rect.h"
 
 namespace views {
 class Widget;
@@ -53,8 +52,7 @@
  public:
   WindowGrid(aura::Window* root_window,
              const std::vector<aura::Window*>& window_list,
-             WindowSelector* window_selector,
-             const gfx::Rect& bounds_in_screen);
+             WindowSelector* window_selector);
   ~WindowGrid() override;
 
   // Exits overview mode, fading out the |shield_widget_| if necessary.
@@ -90,9 +88,6 @@
   // this grid owns.
   bool Contains(const aura::Window* window) const;
 
-  // Removes |selector_item| from the grid.
-  void RemoveItem(WindowSelectorItem* selector_item);
-
   // Dims the items whose titles do not contain |pattern| and prevents their
   // selection. The pattern has its accents removed and is converted to
   // lowercase in a l10n sensitive context.
@@ -103,9 +98,6 @@
   // selected the implementation fades out |selection_widget_| to transparent
   // opacity, effectively hiding the selector widget.
   void WindowClosing(WindowSelectorItem* window);
-
-  // Sets bounds for the window grid and positions all windows in the grid.
-  void SetBoundsAndUpdatePositions(const gfx::Rect& bounds_in_screen);
 
   // Returns true if the grid has no more windows.
   bool empty() const { return window_list_.empty(); }
@@ -198,9 +190,6 @@
   // True only after all windows have been prepared for overview.
   bool prepared_for_overview_;
 
-  // This WindowGrid's total bounds in screen coordinates.
-  gfx::Rect bounds_;
-
   DISALLOW_COPY_AND_ASSIGN(WindowGrid);
 };