Implement DraggedTabGtk, the object that handles rendering either a dragged t...

chrome/browser/gtk/tabs/tab_renderer_gtk.cc

Index: chrome/browser/gtk/tabs/tab_renderer_gtk.cc
===================================================================
--- chrome/browser/gtk/tabs/tab_renderer_gtk.cc	(revision 16177)
+++ chrome/browser/gtk/tabs/tab_renderer_gtk.cc	(working copy)
@@ -125,11 +125,6 @@
   }
 }
 
-bool TabRendererGtk::IsVisible() {
-  // TODO(jhawkins): Implement this and SetVisible.
-  return true;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // TabRendererGtk, public:
 
@@ -183,6 +178,18 @@
   return true;
 }
 
+bool TabRendererGtk::IsVisible() const {
+  return GTK_WIDGET_FLAGS(tab_.get()) & GTK_VISIBLE;
+}
+
+void TabRendererGtk::SetVisible(bool visible) const {
+  if (visible) {
+    gtk_widget_show(tab_.get());
+  } else {
+    gtk_widget_hide(tab_.get());
+  }
+}
+
 void TabRendererGtk::CloseButtonResized(const gfx::Rect& bounds) {
   // Nothing to do.
 }
@@ -337,6 +344,10 @@
                        title_bounds_.height());
 }
 
+void TabRendererGtk::SchedulePaint() {
+  gtk_widget_queue_draw(tab_.get());
+}
+
 void TabRendererGtk::Layout() {
   gfx::Rect local_bounds = bounds_;
   if (local_bounds.IsEmpty())