Plumb the referrer throughout the OpenURL APIs....

chrome/browser/native_ui_contents.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/native_ui_contents.h"
 
 #include "chrome/browser/browser.h"
 #include "chrome/browser/history_tab_ui.h"
 #include "chrome/browser/navigation_entry.h"
 #include "chrome/browser/views/download_tab_view.h"
@@ skipping 78 matching lines @@
     if (event.GetSourceOperations() & DragDropTypes::DRAG_LINK)
       return DragDropTypes::DRAG_LINK;
     return DragDropTypes::DRAG_NONE;
   }
 
   virtual int OnPerformDrop(const views::DropTargetEvent& event) {
     GURL url;
     std::wstring title;
     if (!event.GetData().GetURLAndTitle(&url, &title) || !url.is_valid())
       return DragDropTypes::DRAG_NONE;
-    host_->controller()->LoadURL(url, PageTransition::GENERATED);
+    host_->controller()->LoadURL(url, GURL(), PageTransition::GENERATED);
     return OnDragUpdated(event);
   }
 
  private:
   NativeUIContents* host_;
 
   DISALLOW_EVIL_CONSTRUCTORS(NativeRootView);
 };
 
 }  // namespace
@@ skipping 554 matching lines @@
     DoSearch();
 }
 
 void SearchableUIContainer::DoSearch() {
   if (delegate_)
     delegate_->DoSearch(search_field_->GetText());
 
   scroll_view_->ScrollToPosition(scroll_view_->vertical_scroll_bar(), 0);
 }