[Refactor] Move the logic to update bounds for show type from WorkspaceLayoutManager to DefaultState

ash/wm/wm_types.h

Index: ash/wm/wm_types.h
diff --git a/ash/wm/wm_types.h b/ash/wm/wm_types.h
index 8a4d22df7ca269855c754c8db5d5745abe202e42..380728fe71ed4869ec301efadf0e71a80d717644 100644
--- a/ash/wm/wm_types.h
+++ b/ash/wm/wm_types.h
@@ -43,6 +43,22 @@ enum WindowShowType {
 
 // Set of operations that can change the window's state.
 enum WMEvent {
+  // Following events are the request to become corresponding state.
+  // Note that this does not mean the window will be in corresponding
+  // state and the request may not be fullfilled.
+
+  // NORMAL is used as a restore operation with a few exceptions.
+  NORMAL,
+  MAXIMIZE,
+  MINIMIZE,
+  FULLSCREEN,
+  // TODO(oshima): Consolidate these two events.
+  SNAP_LEFT,
+  SNAP_RIGHT,
+
+  // Following events are compond events which may lead to different
+  // states depending on the current state.
+
   // A user requested to toggle maximized state by double clicking window
   // header.
   TOGGLE_MAXIMIZE_CAPTION,
@@ -57,6 +73,13 @@ enum WMEvent {
   // A user requested to toggle horizontal maximize by double clicking
   // left/right edge.
   TOGGLE_HORIZONTAL_MAXIMIZE,
+
+  // A user requested to toggle fullscreen state.
+  TOGGLE_FULLSCREEN,
+
+  // TODO(oshima): Investigate if this can be removed from ash.
+  // Widget requested to show in inactive state.
+  SHOW_INACTIVE,
 };
 
 // Utility functions to convert WindowShowType <-> ui::WindowShowState.