Refactors WindowResizers to use ash/wm/common

ash/wm/common/wm_globals.h

 // Copyright 2016 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_WM_COMMON_WM_GLOBALS_H_
 #define ASH_WM_COMMON_WM_GLOBALS_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <vector>
 
 #include "ash/ash_export.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ash {
 
-class UserMetricsRecorder;
+class WindowResizer;
 
 namespace wm {
 
+class WindowState;
 class WmActivationObserver;
 class WmDisplayObserver;
+enum class WmUserMetricsAction;

[James Cook, 2016/04/28 20:09:28]

nit: either top of the list ("enum") or under WmOverviewModeObserver, dunno what
our convention is for enums

 class WmOverviewModeObserver;
 class WmWindow;
 
 // Used for accessing global state.
 class ASH_EXPORT WmGlobals {
  public:
   virtual ~WmGlobals() {}
 
   // This is necessary for a handful of places that is difficult to plumb
   // through context.
@@ skipping 19 matching lines @@
   virtual bool IsForceMaximizeOnFirstRun() = 0;
 
   virtual bool IsScreenLocked() = 0;
 
   // See aura::client::CursorClient for details on these.
   virtual void LockCursor() = 0;
   virtual void UnlockCursor() = 0;
 
   virtual std::vector<WmWindow*> GetAllRootWindows() = 0;
 
-  virtual UserMetricsRecorder* GetUserMetricsRecorder() = 0;
+  virtual void RecordUserMetricsAction(WmUserMetricsAction action) = 0;
+
+  // Returns a WindowResizer to handle dragging. |next_window_resizer| is
+  // the next WindowResizer in the WindowResizer chain. This may return
+  // |next_window_resizer|.
+  virtual std::unique_ptr<WindowResizer> CreateDragWindowResizer(
+      std::unique_ptr<WindowResizer> next_window_resizer,
+      wm::WindowState* window_state) = 0;
+
+  // TODO(sky): if WindowSelectorController can't be moved over, move these
+  // onto their own local class.
+  virtual bool IsOverviewModeSelecting() = 0;
+  virtual bool IsOverviewModeRestoringMinimizedWindows() = 0;
 
   virtual void AddActivationObserver(WmActivationObserver* observer) = 0;
   virtual void RemoveActivationObserver(WmActivationObserver* observer) = 0;
 
   virtual void AddDisplayObserver(WmDisplayObserver* observer) = 0;
   virtual void RemoveDisplayObserver(WmDisplayObserver* observer) = 0;
 
   virtual void AddOverviewModeObserver(WmOverviewModeObserver* observer) = 0;
   virtual void RemoveOverviewModeObserver(WmOverviewModeObserver* observer) = 0;
 };
 
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_WM_COMMON_WM_GLOBALS_H_