Adding new maximize menu according to spec

ash/wm/workspace/frame_maximize_button.h

Index: ash/wm/workspace/frame_maximize_button.h
diff --git a/ash/wm/workspace/frame_maximize_button.h b/ash/wm/workspace/frame_maximize_button.h
index 0124c2f4159d92d5c4799c1e4a4688c292e3a654..67559b96a88b05b5f56e95c8ea68e8f5cd9ce5be 100644
--- a/ash/wm/workspace/frame_maximize_button.h
+++ b/ash/wm/workspace/frame_maximize_button.h
@@ -21,9 +21,21 @@ class PhantomWindowController;
 class SnapSizer;
 }
 
+class MaximizeBubble;
+
 // Button used for the maximize control on the frame. Handles snapping logic.
 class ASH_EXPORT FrameMaximizeButton : public views::ImageButton {
  public:
+  // Where to snap to.
+  enum SnapType {
+    SNAP_LEFT,
+    SNAP_RIGHT,
+    SNAP_MAXIMIZE,
+    SNAP_MINIMIZE,
+    SNAP_RESTORE,
+    SNAP_NONE
+  };
+
   FrameMaximizeButton(views::ButtonListener* listener,
                       views::NonClientFrameView* frame);
   virtual ~FrameMaximizeButton();
@@ -38,6 +50,22 @@ class ASH_EXPORT FrameMaximizeButton : public views::ImageButton {
   virtual ui::GestureStatus OnGestureEvent(
       const views::GestureEvent& event) OVERRIDE;
 
+  // Updates |snap_type_| based on a a given snap type. This is used by
+  // external hover events from the button menu.
+  void SnapButtonHovered(SnapType type);
+
+  // The user clicked the |type| button.
+  void SnapButtonClicked(SnapType type);
+
+  // The menu should reflect the user selected type.
+  void UpdateVisibleMenu(SnapType type);
+
+  // Remove the maximize menu from the screen (and destroy it).
+  void DestroyMaximizeMenu();
+
+  // Returns true when the user clicks and drags the button.
+  bool is_snap_enabled() { return is_snap_enabled_; }
+
  protected:
   // ImageButton overrides:
   virtual gfx::ImageSkia GetImageToPaint() OVERRIDE;
@@ -45,16 +73,6 @@ class ASH_EXPORT FrameMaximizeButton : public views::ImageButton {
  private:
   class EscapeEventFilter;
 
-  // Where to snap to.
-  enum SnapType {
-    SNAP_LEFT,
-    SNAP_RIGHT,
-    SNAP_MAXIMIZE,
-    SNAP_MINIMIZE,
-    SNAP_RESTORE,
-    SNAP_NONE
-  };
-
   // Initializes the snap-gesture based on the event. This should only be called
   // when the event is confirmed to have started a snap gesture.
   void ProcessStartEvent(const views::LocatedEvent& event);
@@ -118,6 +136,8 @@ class ASH_EXPORT FrameMaximizeButton : public views::ImageButton {
 
   base::OneShotTimer<FrameMaximizeButton> update_timer_;
 
+  scoped_ptr<MaximizeBubble> maximizer_;
+
   DISALLOW_COPY_AND_ASSIGN(FrameMaximizeButton);
 };