Remove last extension dependencies from content.

content/browser/renderer_host/resource_dispatcher_host_delegate.h

Index: content/browser/renderer_host/resource_dispatcher_host_delegate.h
diff --git a/content/browser/renderer_host/resource_dispatcher_host_delegate.h b/content/browser/renderer_host/resource_dispatcher_host_delegate.h
index 4e1e00cb03d308f04f47f4ec23a8247977161f6d..0aee39aefa3c1369441c4a6dfe13b4a1ac7dc62b 100644
--- a/content/browser/renderer_host/resource_dispatcher_host_delegate.h
+++ b/content/browser/renderer_host/resource_dispatcher_host_delegate.h
@@ -83,6 +83,11 @@ class ResourceDispatcherHostDelegate {
                                       int child_id,
                                       int route_id);
 
+  // Returns true if we should force the given resource to be downloaded.
+  // Otherwise, the content layer decides.
+  virtual bool ShouldForceDownloadResource(
+      const GURL& url, const std::string& mime_type);
+
  protected:
   ResourceDispatcherHostDelegate();
   virtual ~ResourceDispatcherHostDelegate();