Improve testing for SDCH.

net/filter/mock_filter_context.h

Index: net/filter/mock_filter_context.h
diff --git a/net/filter/mock_filter_context.h b/net/filter/mock_filter_context.h
index 9bb6235a3a9ab161c08880e1421c9b574078d33b..c9ea9c96a592cf5f6338275ee144f08735ae191f 100644
--- a/net/filter/mock_filter_context.h
+++ b/net/filter/mock_filter_context.h
@@ -35,6 +35,9 @@ class MockFilterContext : public FilterContext {
   URLRequestContext* GetModifiableURLRequestContext() const {
     return context_.get();
   }
+  // Make all interfaces that might be unstable after a URLRequests
+  // destruction be so.
+  void NukeUnstableInterfaces();
 
   virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
 
@@ -77,6 +80,7 @@ class MockFilterContext : public FilterContext {
   bool is_cached_content_;
   bool is_download_;
   bool is_sdch_response_;
+  bool ok_to_call_get_url_;
   int response_code_;
   scoped_ptr<URLRequestContext> context_;