Compact Navigation prototype

chrome/browser/ui/browser.h

Index: chrome/browser/ui/browser.h
diff --git a/chrome/browser/ui/browser.h b/chrome/browser/ui/browser.h
index 0e2f6c3a88c321b25972a18d52c2e37445c17bc7..fd84e28c67f1057900bd4fdd7317415a1094bb91 100644
--- a/chrome/browser/ui/browser.h
+++ b/chrome/browser/ui/browser.h
@@ -479,7 +479,6 @@ class Browser : public TabHandlerDelegate,
   void ToggleFullscreenMode();
   void Exit();
 #if defined(OS_CHROMEOS)
-  void ToggleCompactNavigationBar();
   void Search();
   void ShowKeyboardOverlay();
 #endif
@@ -580,6 +579,7 @@ class Browser : public TabHandlerDelegate,
 
   // Overridden from TabStripModelDelegate:
   virtual bool UseVerticalTabs() const;
+  virtual bool UseCompactNavigationBar() const;
 
   /////////////////////////////////////////////////////////////////////////////
 
@@ -701,6 +701,7 @@ class Browser : public TabHandlerDelegate,
   virtual void BookmarkAllTabs();
   virtual bool CanCloseTab() const;
   virtual void ToggleUseVerticalTabs();
+  virtual void ToggleUseCompactNavigationBar();
   virtual bool CanRestoreTab();
   virtual void RestoreTab();
   virtual bool LargeIconsPermitted() const;
@@ -1016,6 +1017,10 @@ class Browser : public TabHandlerDelegate,
   // policy of the tab strip model and notifies the window.
   void UseVerticalTabsChanged();
 
+  // Invoked when the use of the compact navigation bar preference changes.
+  // Notifies the window.
+  void UseCompactNavigationBarChanged();
+
   // Implementation of SupportsWindowFeature and CanSupportWindowFeature. If
   // |check_fullscreen| is true, the set of features reflect the actual state of
   // the browser, otherwise the set of features reflect the possible state of
@@ -1177,6 +1182,9 @@ class Browser : public TabHandlerDelegate,
   // Tracks the display mode of the tabstrip.
   mutable BooleanPrefMember use_vertical_tabs_;
 
+  // Tracks the display mode of the navigation bar.
+  mutable BooleanPrefMember use_compact_navigation_bar_;
+
   // The profile's tab restore service. The service is owned by the profile,
   // and we install ourselves as an observer.
   TabRestoreService* tab_restore_service_;