Reland 135525 - Add a first-class off-store install UI to chrome://extensions/.

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index d9e6f0d5f78c326f467123db45eb03a11faa1f16..0578572dbe317d2ebdc2e974a588703335a77ce2 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -338,6 +338,10 @@ void WebContentsViewAura::CancelDragAndCloseTab() {
   close_tab_after_drag_ends_ = true;
 }
 
+WebDropData* WebContentsViewAura::GetDropData() const {
+  return NULL;
+}
+
 bool WebContentsViewAura::IsEventTracking() const {
   return false;
 }