Compact Navigation prototype

chrome/browser/tabs/tab_strip_model_delegate.h

Index: chrome/browser/tabs/tab_strip_model_delegate.h
diff --git a/chrome/browser/tabs/tab_strip_model_delegate.h b/chrome/browser/tabs/tab_strip_model_delegate.h
index bae327e3d1474e5011c1e4cf03d83e02215c96b5..0279e847d6e1cbb567c8578566ac1d74cef38fa5 100644
--- a/chrome/browser/tabs/tab_strip_model_delegate.h
+++ b/chrome/browser/tabs/tab_strip_model_delegate.h
@@ -118,6 +118,12 @@ class TabStripModelDelegate {
   // Toggles the use of the vertical tabstrip.
   virtual void ToggleUseVerticalTabs() = 0;
 
+  // Returns true if the compact navigation bar should be used.
+  virtual bool UseCompactNavigationBar() const = 0;
+
+  // Toggles the use of the compact navigation bar.
+  virtual void ToggleUseCompactNavigationBar() = 0;
+
   // Returns true if the tab strip can use large icons.
   virtual bool LargeIconsPermitted() const = 0;