InstantExtended: Add js api for custom logo.

chrome/browser/ui/browser_window.h

Index: chrome/browser/ui/browser_window.h
diff --git a/chrome/browser/ui/browser_window.h b/chrome/browser/ui/browser_window.h
index 04e3b27ad410e0c7f684404d74ec7b0ec061bbdc..cd260c10c36047e20b5696acc93b75190e3085db 100644
--- a/chrome/browser/ui/browser_window.h
+++ b/chrome/browser/ui/browser_window.h
@@ -335,6 +335,9 @@ class BrowserWindow : public BaseWindow {
   // Checks if an instant's tab contents is being shown.
   virtual bool IsInstantTabShowing() = 0;
 
+  // Indicates whether the search provider has a custom logo for the NTP.
+  virtual void SetInstantHasCustomLogo(bool has_logo) = 0;
+
   // Return the correct disposition for a popup window based on |bounds|.
   virtual WindowOpenDisposition GetDispositionForPopupBounds(
       const gfx::Rect& bounds) = 0;