Allow updating arc widget bounds in maximize/fullscreen state.

ash/common/wm/window_state.h

Index: ash/common/wm/window_state.h
diff --git a/ash/common/wm/window_state.h b/ash/common/wm/window_state.h
index db48217669be7f998a799680a29f15644cfdce66..9d4eaac8c23ad95a1c594893277dd5ef5852658f 100644
--- a/ash/common/wm/window_state.h
+++ b/ash/common/wm/window_state.h
@@ -289,6 +289,15 @@ class ASH_EXPORT WindowState {
     ignore_keyboard_bounds_change_ = ignore_keyboard_bounds_change;
   }
 
+  // True if the window's bounds can be updated using SET_BOUNDS event in
+  // maiximzed/fullscreen mode.
+  void set_allow_set_bounds_in_maximized(bool value) {

[reveman, 2016/08/12 16:17:31]

nit: ..when_maximized or in_maximized_mode/state

[oshima, 2016/08/12 23:03:33]

MAXIMIZED is used as a name of state ui code, and I'm following the same
pattern.

https://cs.chromium.org/chromium/src/ui/base/ui_base_types.h?rcl=0&l=20

May I keep this? (and "when" sounds like transiton, maximized_mode conflicts
with maximize_mode)

[reveman, 2016/08/12 23:44:40]

Sure

+    allow_set_bounds_in_maximized_ = value;
+  }
+  bool allow_set_bounds_in_maximized() const {
+    return allow_set_bounds_in_maximized_;
+  }
+
   // Creates and takes ownership of a pointer to DragDetails when resizing is
   // active. This should be done before a resizer gets created.
   void CreateDragDetails(const gfx::Point& point_in_parent,
@@ -375,6 +384,7 @@ class ASH_EXPORT WindowState {
   bool minimum_visibility_;
   bool can_be_dragged_;
   bool cached_always_on_top_;
+  bool allow_set_bounds_in_maximized_ = false;
 
   // A property to remember the window position which was set before the
   // auto window position manager changed the window bounds, so that it can get