Revert 221651 "Switch to doing user-resizing via system for pane..."

trunk/src/chrome/browser/ui/cocoa/panels/panel_cocoa.mm

Index: trunk/src/chrome/browser/ui/cocoa/panels/panel_cocoa.mm
===================================================================
--- trunk/src/chrome/browser/ui/cocoa/panels/panel_cocoa.mm	(revision 221673)
+++ trunk/src/chrome/browser/ui/cocoa/panels/panel_cocoa.mm	(working copy)
@@ -261,6 +261,10 @@
   [controller_ updateWindowCollectionBehavior];
 }
 
+void PanelCocoa::EnableResizeByMouse(bool enable) {
+  [controller_ enableResizeByMouse:enable];
+}
+
 void PanelCocoa::UpdatePanelMinimizeRestoreButtonVisibility() {
   [controller_ updateTitleBarMinimizeRestoreButtonVisibility];
 }