Refactors WindowResizers to use ash/wm/common

ash/wm/common/wm_globals.h

Index: ash/wm/common/wm_globals.h
diff --git a/ash/wm/common/wm_globals.h b/ash/wm/common/wm_globals.h
index 34ad0f2c84e3105327781f1601370ed98d28297d..a98b0692eb52b17ad51151952039d279ffb35337 100644
--- a/ash/wm/common/wm_globals.h
+++ b/ash/wm/common/wm_globals.h
@@ -7,6 +7,7 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <vector>
 
 #include "ash/ash_export.h"
@@ -17,12 +18,14 @@ 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;
 
@@ -62,7 +65,19 @@ class ASH_EXPORT WmGlobals {
 
   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;