Removes the grid from ash.

ash/wm/workspace/workspace_manager.cc

Index: ash/wm/workspace/workspace_manager.cc
diff --git a/ash/wm/workspace/workspace_manager.cc b/ash/wm/workspace/workspace_manager.cc
index 95fee2756570ed0ee9319a022dcdaffe898a6abc..ca87dc738379047c8f628b58aeef7291d4b4adb7 100644
--- a/ash/wm/workspace/workspace_manager.cc
+++ b/ash/wm/workspace/workspace_manager.cc
@@ -148,14 +148,6 @@ bool WorkspaceManager::IsInMaximizedMode() const {
       active_workspace_->type() == Workspace::TYPE_MAXIMIZED;
 }
 
-void WorkspaceManager::SetGridSize(int size) {
-  grid_size_ = size;
-}
-
-int WorkspaceManager::GetGridSize() const {
-  return grid_size_;
-}
-
 WorkspaceWindowState WorkspaceManager::GetWindowState() const {
   if (!shelf_ || !active_workspace_)
     return WORKSPACE_WINDOW_STATE_DEFAULT;