Add pin icon to the omnibar in windows 8 metro mode.

chrome/browser/ui/panels/panel_browser_window.cc

Index: chrome/browser/ui/panels/panel_browser_window.cc
diff --git a/chrome/browser/ui/panels/panel_browser_window.cc b/chrome/browser/ui/panels/panel_browser_window.cc
index 7f1f84beb4357472721af65ceaef907d2066cb6b..4bf9a59e268fc51c64e5e431df8abc526000dc4b 100644
--- a/chrome/browser/ui/panels/panel_browser_window.cc
+++ b/chrome/browser/ui/panels/panel_browser_window.cc
@@ -158,6 +158,12 @@ void PanelBrowserWindow::SetStarredState(bool is_starred) {
   // have starred state.
 }
 
+#if defined(OS_WIN)
+void PanelBrowserWindow::SetMetroPinnedState(bool is_pinned) {
+  // Since panels don't have an Omnibox, they don't have a pinned icon.
+}
+#endif
+
 void PanelBrowserWindow::SetZoomIconState(ZoomController::ZoomIconState state) {
   // Since panels don't have an Omnibox, they don't have a zoom icon.
 }