Implement a Menu Item to Hide the Toolbar in Fullscreen

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 5be1927004853e3f1be96b09cca6cd2573717053..8b35ba53b2149002d842e576860d25eae710b828 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -1032,10 +1032,19 @@ void BrowserView::UpdateFullscreenWithToolbar(bool with_toolbar) {
   NOTIMPLEMENTED();
 }
 
+void BrowserView::ToggleFullscreenToolbar() {
+  // This is currently a Mac only feature.
+  NOTIMPLEMENTED();
+}
+
 bool BrowserView::IsFullscreenWithToolbar() const {
   return false;
 }
 
+bool BrowserView::ShouldHideFullscreenToolbar() const {
+  return false;
+}
+
 #if defined(OS_WIN)
 void BrowserView::SetMetroSnapMode(bool enable) {
   LOCAL_HISTOGRAM_COUNTS("Metro.SnapModeToggle", enable);