Attemp 2 at:

chrome/browser/tabs/tab_strip_model.h

Index: chrome/browser/tabs/tab_strip_model.h
diff --git a/chrome/browser/tabs/tab_strip_model.h b/chrome/browser/tabs/tab_strip_model.h
index c00dbffee1b66eafca5fbbf8486fccdf044638a4..5e43d85b2890515f729b2cf21ae2be636c293baf 100644
--- a/chrome/browser/tabs/tab_strip_model.h
+++ b/chrome/browser/tabs/tab_strip_model.h
@@ -236,9 +236,6 @@ class TabStripModelDelegate {
 
   // Toggles the use of the vertical tabstrip.
   virtual void ToggleUseVerticalTabs() = 0;
-
-  // Set the visiblity of the toolbar.
-  virtual void SetToolbarVisibility(bool value) = 0;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -551,9 +548,6 @@ class TabStripModel : public NotificationObserver {
   // See description above class for details on app tabs.
   bool IsAppTab(int index) const;
 
-  // Returns true if the toolbar is visible for the tab at |index|.
-  bool IsToolbarVisible(int index) const;
-
   // Returns true if the tab is a phantom tab. A phantom tab is one where the
   // renderer has not been loaded.
   // See description above class for details on phantom tabs.
@@ -626,7 +620,6 @@ class TabStripModel : public NotificationObserver {
     CommandCloseTabsToRight,
     CommandRestoreTab,
     CommandTogglePinned,
-    CommandToggleToolbar,
     CommandBookmarkAllTabs,
     CommandUseVerticalTabs,
     CommandLast