Fixing problem with edge swipe exiting immersive mode

ash/wm/window_state.h

Index: ash/wm/window_state.h
diff --git a/ash/wm/window_state.h b/ash/wm/window_state.h
index 4ce47fdd275de07c806862b87139820d1d12b208..b6d81d3e6589844400f63fc907f1490705d4d0ba 100644
--- a/ash/wm/window_state.h
+++ b/ash/wm/window_state.h
@@ -267,6 +267,15 @@ class ASH_EXPORT WindowState : public aura::WindowObserver {
     top_row_keys_are_function_keys_ = value;
   }
 
+  // True if the window is in immersive full screen mode which is slightly
+  // different than normal fullscreen mode (e.g. use of edge swipe gestures).
+  bool immersive_mode() const {

[pkotwicz, 2014/06/02 19:50:06]

This should be called in_immersive_fullscreen().

You should also include a warning that hide_shelf_when_fullscreen() is probably
what the person is looking for and a short description of what immersive
fullscreen is.
In particular:
- Immersive fullscreen does not imply that the shelf is auto hidden. The shelf
may be hidden completely and it may not be possible to reveal the shelf using
either the mouse or touch while in immersive fullscreen
- Any window can be put into immersive fullscreen (It is possible to put the
task manager into immersive fullscreen)
- Immersive fullscreen implies that the top non client frame views are
revealable. The top non client frame views may or may not steal a few pixels
from the top edge of the screen

[Mr4D (OOO till 08-26), 2014/06/02 20:36:20]

Done.

+    return immersive_mode_;
+  }
+  void set_immersive_mode(bool enable) {
+    immersive_mode_ = enable;
+  }
+
   // Creates and takes ownership of a pointer to DragDetails when resizing is
   // active. This should be done before a resizer gets created.
   void CreateDragDetails(aura::Window* window,
@@ -339,6 +348,7 @@ class ASH_EXPORT WindowState : public aura::WindowObserver {
   bool ignored_by_shelf_;
   bool can_consume_system_keys_;
   bool top_row_keys_are_function_keys_;
+  bool immersive_mode_;
   scoped_ptr<DragDetails> drag_details_;
 
   bool unminimize_to_restore_bounds_;