Support minimizing the panel into 3-pixel line on Windows. Also support bringing up/down the titl...

chrome/browser/ui/panels/panel_browser_window_gtk.cc

Index: chrome/browser/ui/panels/panel_browser_window_gtk.cc
===================================================================
--- chrome/browser/ui/panels/panel_browser_window_gtk.cc	(revision 90982)
+++ chrome/browser/ui/panels/panel_browser_window_gtk.cc	(working copy)
@@ -91,12 +91,15 @@
   SetBounds(bounds);
 }
 
-void PanelBrowserWindowGtk::MinimizePanel() {
+void PanelBrowserWindowGtk::SetPanelExpansionState(
+    Panel::ExpansionState expansion_state) {
   NOTIMPLEMENTED();
 }
 
-void PanelBrowserWindowGtk::RestorePanel() {
+bool PanelBrowserWindowGtk::ShouldBringUpPanelTitleBar(int mouse_x,
+                                                       int mouse_y) const {
   NOTIMPLEMENTED();
+  return false;
 }
 
 void PanelBrowserWindowGtk::ClosePanel() {