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

trunk/src/chrome/browser/ui/views/panels/panel_view.cc

Index: trunk/src/chrome/browser/ui/views/panels/panel_view.cc
===================================================================
--- trunk/src/chrome/browser/ui/views/panels/panel_view.cc	(revision 221673)
+++ trunk/src/chrome/browser/ui/views/panels/panel_view.cc	(working copy)
@@ -599,6 +599,10 @@
   window_->client_view()->Layout();
 }
 
+void PanelView::EnableResizeByMouse(bool enable) {
+  // Nothing to do since we use system resizing.
+}
+
 void PanelView::UpdatePanelMinimizeRestoreButtonVisibility() {
   GetFrameView()->UpdateTitlebarMinimizeRestoreButtonVisibility();
 }