Multi-tab selection for Linux.

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

Index: chrome/browser/ui/gtk/tabs/tab_gtk.h
diff --git a/chrome/browser/ui/gtk/tabs/tab_gtk.h b/chrome/browser/ui/gtk/tabs/tab_gtk.h
index 460d25df2ef8a1961869c91d264cdf732dabf013..821120b87e2d26f1bae05b7b45d28f6c22b5110f 100644
--- a/chrome/browser/ui/gtk/tabs/tab_gtk.h
+++ b/chrome/browser/ui/gtk/tabs/tab_gtk.h
@@ -28,6 +28,9 @@ class TabGtk : public TabRendererGtk,
   // TabRenderer::Model.
   class TabDelegate {
    public:
+    // Returns true if the specified Tab is active.
+    virtual bool IsTabActive(const TabGtk* tab) const = 0;
+
     // Returns true if the specified Tab is selected.
     virtual bool IsTabSelected(const TabGtk* tab) const = 0;
 
@@ -37,8 +40,14 @@ class TabGtk : public TabRendererGtk,
     // Returns true if the specified Tab is detached.
     virtual bool IsTabDetached(const TabGtk* tab) const = 0;
 
-    // Selects the specified Tab.
-    virtual void SelectTab(TabGtk* tab) = 0;
+    // Activate the specified Tab.
+    virtual void ActivateTab(TabGtk* tab) = 0;
+
+    // Toggle selection of the specified Tab.
+    virtual void ToggleTabSelection(TabGtk* tab) = 0;
+
+    // Extends selection from the anchor to the specified Tab.
+    virtual void ExtendTabSelection(TabGtk* tab) = 0;
 
     // Closes the specified Tab.
     virtual void CloseTab(TabGtk* tab) = 0;
@@ -80,6 +89,9 @@ class TabGtk : public TabRendererGtk,
     // Returns the theme provider for icons and colors.
     virtual ui::ThemeProvider* GetThemeProvider() = 0;
 
+    virtual TabStripModel* model() const = 0;
+    virtual int GetIndexOfTab(const TabGtk* tab) const = 0;
+
    protected:
     virtual ~TabDelegate() {}
   };
@@ -101,6 +113,7 @@ class TabGtk : public TabRendererGtk,
   bool dragging() const { return dragging_; }
 
   // TabRendererGtk overrides:
+  virtual bool IsActive() const;
   virtual bool IsSelected() const;
   virtual bool IsVisible() const;
   virtual void SetVisible(bool visible) const;