ash: Move alignment and autohide behavior from Shelf to WmShelf

ash/shell/context_menu.cc

Index: ash/shell/context_menu.cc
diff --git a/ash/shell/context_menu.cc b/ash/shell/context_menu.cc
index e3812da47567c0acebb0d8ec865adcdb70315fca..5c8ae851ac3228ece10424d9d067f9204771ef4a 100644
--- a/ash/shell/context_menu.cc
+++ b/ash/shell/context_menu.cc
@@ -27,7 +27,7 @@ ContextMenu::~ContextMenu() {}
 
 bool ContextMenu::IsCommandIdChecked(int command_id) const {
   if (command_id == MENU_AUTO_HIDE)
-    return wm_shelf_->GetAutoHideBehavior() == SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
+    return wm_shelf_->auto_hide_behavior() == SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
   return false;
 }
 
@@ -37,7 +37,7 @@ bool ContextMenu::IsCommandIdEnabled(int command_id) const {
 
 void ContextMenu::ExecuteCommand(int command_id, int event_flags) {
   if (command_id == MENU_AUTO_HIDE) {
-    wm_shelf_->SetAutoHideBehavior(wm_shelf_->GetAutoHideBehavior() ==
+    wm_shelf_->SetAutoHideBehavior(wm_shelf_->auto_hide_behavior() ==
                                            SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS
                                        ? SHELF_AUTO_HIDE_BEHAVIOR_NEVER
                                        : SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS);