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..91a64d22ac584e5e9b83a5a09e4c3c5150ec664a 100644
--- a/net/filter/mock_filter_context.h
+++ b/net/filter/mock_filter_context.h
@@ -36,6 +36,11 @@ class MockFilterContext : public FilterContext {
     return context_.get();
   }
 
+  // After a URLRequest's destructor is called, some interfaces may become
+  // unstable.  This method is used to signal that state, so we can tag use
+  // of those interfaces as coding errors.
+  void NukeUnstableInterfaces();
+
   virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
 
   // What URL was used to access this data?
@@ -77,6 +82,7 @@ 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_;