Use a single ToplevelWindowEventHandler for the ash::Shell. This is part 1 in disabling the few cases in which dragging multiple windows is possible (which causes crashiness)

BUG=324038
TEST=None

R=oshima
TBR=sadrul (This is a reland of https://codereview.chromium.org/114643003)

Review URL: https://codereview.chromium.org/102253008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244835 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 8 deletions

diff --git a/ash/root_window_controller.h b/ash/root_window_controller.h
index 3ff7288..aa1ec2b 100644
--- a/ash/root_window_controller.h
+++ b/ash/root_window_controller.h
@@ -42,11 +42,14 @@ namespace keyboard {
 class KeyboardController;
 }
 
+namespace ui {
+class EventHandler;
+}
+
 namespace ash {
 class ShelfWidget;
 class StackingController;
 class SystemTray;
-class ToplevelWindowEventHandler;
 
 namespace internal {
 
@@ -297,13 +300,8 @@ class ASH_EXPORT RootWindowController : public ShellObserver {
   TouchHudDebug* touch_hud_debug_;
   TouchHudProjection* touch_hud_projection_;
 
-  // We need to own event handlers for various containers.
-  scoped_ptr<ToplevelWindowEventHandler> default_container_handler_;
-  scoped_ptr<ToplevelWindowEventHandler> always_on_top_container_handler_;
-  scoped_ptr<ToplevelWindowEventHandler> modal_container_handler_;
-  scoped_ptr<ToplevelWindowEventHandler> lock_modal_container_handler_;
-  scoped_ptr<ToplevelWindowEventHandler> panel_container_handler_;
-  scoped_ptr<ToplevelWindowEventHandler> docked_container_handler_;
+  // Handles double clicks on the panel window header.
+  scoped_ptr<ui::EventHandler> panel_container_handler_;
 
   scoped_ptr<DesktopBackgroundWidgetController> wallpaper_controller_;
   scoped_ptr<AnimatingDesktopController> animating_wallpaper_controller_;