Pin dictionaries from being deleted while request is outstanding.

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
diff --git a/net/url_request/url_request_http_job.h b/net/url_request/url_request_http_job.h
index f4bea7e593004f7d4b761a502e3ba0648cbc39f1..a295c5167a5423f904f2e4ce7b3c24f52032cb59 100644
--- a/net/url_request/url_request_http_job.h
+++ b/net/url_request/url_request_http_job.h
@@ -15,6 +15,7 @@
 #include "net/base/auth.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
+#include "net/base/sdch_manager.h"
 #include "net/cookies/cookie_store.h"
 #include "net/filter/filter.h"
 #include "net/http/http_request_info.h"
@@ -197,11 +198,9 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   // back-off.  May be NULL.
   scoped_refptr<URLRequestThrottlerEntryInterface> throttling_entry_;
 
-  // Indicated if an SDCH dictionary was advertised, and hence an SDCH
-  // compressed response is expected.  We use this to help detect (accidental?)
-  // proxy corruption of a response, which sometimes marks SDCH content as
-  // having no content encoding <oops>.
-  bool sdch_dictionary_advertised_;
+  // A handle to the SDCH dictionaries that were advertised in this request.
+  // May be null.
+  scoped_ptr<SdchManager::DictionarySet> dictionaries_advertised_;
 
   // For SDCH latency experiments, when we are able to do SDCH, we may enable
   // either an SDCH latency test xor a pass through test.  The following bools