alternate ntp (cros/partial-win): add tab-related stuff and toolbar/tab background change

chrome/browser/ui/views/detachable_toolbar_view.h

Index: chrome/browser/ui/views/detachable_toolbar_view.h
diff --git a/chrome/browser/ui/views/detachable_toolbar_view.h b/chrome/browser/ui/views/detachable_toolbar_view.h
index 52374c0f43477641e6a09c4a5b971c023a498046..f4214f25e252dc910dad88dc78fbaa1bfc191405 100644
--- a/chrome/browser/ui/views/detachable_toolbar_view.h
+++ b/chrome/browser/ui/views/detachable_toolbar_view.h
@@ -8,6 +8,10 @@
 
 #include "ui/views/accessible_pane_view.h"
 
+namespace gfx {
+class ImageSkia;
+}
+
 struct SkRect;
 
 // DetachableToolbarView contains functionality common to views that can detach
@@ -34,9 +38,12 @@ class DetachableToolbarView : public views::AccessiblePaneView {
   // Paints the background (including the theme image behind content area) when
   // the bar/shelf is attached to the top toolbar.  |background_origin| is the
   // origin to use for painting the theme image.
-  static void PaintBackgroundAttachedMode(gfx::Canvas* canvas,
-                                          views::View* view,
-                                          const gfx::Point& background_origin);
+  static void PaintBackgroundAttachedMode(
+      gfx::Canvas* canvas,
+      views::View* view,
+      const gfx::Point& background_origin,
+      SkColor toolbar_background_color,
+      gfx::ImageSkia* toolbar_background_image);
 
   // Calculate the rect for the content area of the bar/shelf. This is only
   // needed when the bar/shelf is detached from the Chrome frame (otherwise the