Switch default WM mode to managed

ash/shell.h

 // Copyright (c) 2012 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_SHELL_H_
 #define ASH_SHELL_H_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 204 matching lines @@
   // Made available for tests.
   internal::ShadowController* shadow_controller() {
     return shadow_controller_.get();
   }
 
   static void set_compact_window_mode_for_test(bool compact) {
     compact_window_mode_for_test_ = compact;
   }
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(RootWindowEventFilterTest, MouseEventCursors);
+  FRIEND_TEST_ALL_PREFIXES(RootWindowEventFilterTest, TransformActivate);
+
   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 
   explicit Shell(ShellDelegate* delegate);
   virtual ~Shell();
 
   void Init();
 
   // Returns the appropriate window mode to use based on the |command_line|
   // and |compact_window_mode_for_test_|.
   WindowMode ComputeWindowMode(CommandLine* command_line) const;
 
   // Initializes or re-initializes the layout managers and event filters needed
   // to support a given window mode and cleans up the unneeded ones.
   void SetupCompactWindowMode();
   void SetupNonCompactWindowMode();
 
   // Sets the LayoutManager of the container with the specified id to NULL. This
   // has the effect of deleting the current LayoutManager.
   void ResetLayoutManager(int container_id);
 
+  // Disables the workspace grid layout.
+  void DisableWorkspaceGridLayout();
+
   static Shell* instance_;
 
   // Window mode is computed at shell initialization time, so allow it to be
   // overridden without modifying the global command line.
   static bool compact_window_mode_for_test_;
 
   // If set before the Shell is initialized, the mouse cursor will be hidden
   // when the screen is initially created.
   static bool initially_hide_cursor_;
 
@@ skipping 67 matching lines @@
   // Offset between the corner of the status area and the corner of the screen
   // when in the compact window mode.
   gfx::Size compact_status_area_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_