Multi-tab selection for Linux.

chrome/browser/ui/gtk/tabs/tab_strip_gtk.h

Index: chrome/browser/ui/gtk/tabs/tab_strip_gtk.h
diff --git a/chrome/browser/ui/gtk/tabs/tab_strip_gtk.h b/chrome/browser/ui/gtk/tabs/tab_strip_gtk.h
index cdaff986e11d9e429d9459dba5bf2f9031d0ed76..e67a3c5c890181b02bb93c7126d8ec21428af800 100644
--- a/chrome/browser/ui/gtk/tabs/tab_strip_gtk.h
+++ b/chrome/browser/ui/gtk/tabs/tab_strip_gtk.h
@@ -125,10 +125,13 @@ class TabStripGtk : public TabStripModelObserver,
                                       int index);
 
   // TabGtk::TabDelegate implementation:
+  virtual bool IsTabActive(const TabGtk* tab) const;
   virtual bool IsTabSelected(const TabGtk* tab) const;
   virtual bool IsTabPinned(const TabGtk* tab) const;
   virtual bool IsTabDetached(const TabGtk* tab) const;
-  virtual void SelectTab(TabGtk* tab);
+  virtual void ActivateTab(TabGtk* tab);
+  virtual void ToggleTabSelection(TabGtk* tab);
+  virtual void ExtendTabSelection(TabGtk* tab);
   virtual void CloseTab(TabGtk* tab);
   virtual bool IsCommandEnabledForTab(
       TabStripModel::ContextMenuCommand command_id, const TabGtk* tab) const;
@@ -144,6 +147,7 @@ class TabStripGtk : public TabStripModelObserver,
   virtual bool EndDrag(bool canceled);
   virtual bool HasAvailableDragActions() const;
   virtual ui::ThemeProvider* GetThemeProvider();
+  virtual TabStripMenuController* GetContextMenuControllerForTab(TabGtk* tab);
 
   // MessageLoop::Observer implementation:
   virtual void WillProcessEvent(GdkEvent* event);