Add net::SdchSourceStream and net::SdchPolicyDelegate

net/base/sdch_manager.h

Index: net/base/sdch_manager.h
diff --git a/net/base/sdch_manager.h b/net/base/sdch_manager.h
index 90518f669d93c54937088e76fa0b1962f01298b0..dcb47717851b2c825785bf282bd95c370603ac63 100644
--- a/net/base/sdch_manager.h
+++ b/net/base/sdch_manager.h
@@ -26,6 +26,7 @@
 #include "net/base/net_export.h"
 #include "net/base/sdch_dictionary.h"
 #include "net/base/sdch_problem_codes.h"
+#include "net/log/net_log_with_source.h"
 
 class GURL;
 
@@ -194,6 +195,9 @@ class NET_EXPORT SdchManager {
   void AddObserver(SdchObserver* observer);
   void RemoveObserver(SdchObserver* observer);
 
+  // Logs an SDCH failure to UMA and |netlog|.
+  static void LogSdchProblem(NetLogWithSource netlog, SdchProblemCode problem);
+
   static std::unique_ptr<DictionarySet> CreateEmptyDictionarySetForTesting();
 
  private: