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

chrome/browser/ui/search/search_delegate.h

Index: chrome/browser/ui/search/search_delegate.h
diff --git a/chrome/browser/ui/search/search_delegate.h b/chrome/browser/ui/search/search_delegate.h
index 26f4f149ab10be37dce84bf380e6df3a8e1a04c6..e8f30c7dd08275e47f55cee6244c896291529e09 100644
--- a/chrome/browser/ui/search/search_delegate.h
+++ b/chrome/browser/ui/search/search_delegate.h
@@ -9,6 +9,7 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/search/search_model_observer.h"
+#include "chrome/browser/ui/search/toolbar_search_animator.h"
 
 class TabContents;
 
@@ -43,6 +44,10 @@ class SearchDelegate : public SearchModelObserver {
   // tab's model.
   void OnTabDetached(TabContents* contents);
 
+  ToolbarSearchAnimator& toolbar_search_animator() {
+    return toolbar_search_animator_;
+  }
+
  private:
   // Stop observing tab.
   void StopObserveringTab(TabContents* contents);
@@ -55,6 +60,10 @@ class SearchDelegate : public SearchModelObserver {
   // tab.  Changes to this model are propagated through to the |browser_model_|.
   SearchModel* tab_model_;
 
+  // Animator for fading in toolbar and tab backgrounds when mode changes from
+  // NTP to SEARCH.
+  ToolbarSearchAnimator toolbar_search_animator_;
+
   DISALLOW_COPY_AND_ASSIGN(SearchDelegate);
 };