InstantExtended: Add js api for custom logo.

chrome/browser/ui/views/search_view_controller.h

Index: chrome/browser/ui/views/search_view_controller.h
diff --git a/chrome/browser/ui/views/search_view_controller.h b/chrome/browser/ui/views/search_view_controller.h
index bf5e4c187d167e74ff0a062b1804442a1f0797f0..058b01d6dfc3fec967e63c40fa0b290e2a8ab320 100644
--- a/chrome/browser/ui/views/search_view_controller.h
+++ b/chrome/browser/ui/views/search_view_controller.h
@@ -86,6 +86,9 @@ class SearchViewController
   // |ntp_container_| relative to |destination| relative.
   gfx::Rect GetNTPOmniboxBounds(views::View* destination);
 
+  // Sets whether the Instant overlay page has a custom provider logo.
+  void SetInstantHasCustomLogo(bool has_logo);
+
  protected:
   // ui::ImplicitAnimationObserver overrides:
   virtual void OnImplicitAnimationsCompleted() OVERRIDE;
@@ -222,6 +225,9 @@ class SearchViewController
   // Container provided to clients to host the omnibox popup view.
   internal::OmniboxPopupContainer* omnibox_popup_parent_;
 
+  // True iff the provider wants to show a custom logo in the Instant overlay.
+  bool instant_has_custom_logo_;
+
   DISALLOW_COPY_AND_ASSIGN(SearchViewController);
 };