Do not mark alternate-protocol broken unless the main job succeeds.

net/http/http_stream_factory_impl_job.h

Index: net/http/http_stream_factory_impl_job.h
diff --git a/net/http/http_stream_factory_impl_job.h b/net/http/http_stream_factory_impl_job.h
index d4406477f7ea5c6435d7ee74eaf2422da7457433..76492a442937e8cde1fd798451deb5449d8e9c2c 100644
--- a/net/http/http_stream_factory_impl_job.h
+++ b/net/http/http_stream_factory_impl_job.h
@@ -96,6 +96,9 @@ class HttpStreamFactoryImpl::Job {
   // will be orphaned.
   void ReportJobSuccededForRequest();
 
+  // Marks that the other |job| has completed.
+  void MarkOtherJobComplete(const Job& job);
+
  private:
   enum State {
     STATE_START,
@@ -133,6 +136,13 @@ class HttpStreamFactoryImpl::Job {
     STATE_NONE
   };
 
+  enum JobStatus {
+    STATUS_RUNNING,
+    STATUS_FAILED,
+    STATUS_BROKEN,
+    STATUS_SUCCEEDED
+  };
+
   void OnStreamReadyCallback();
   void OnWebSocketHandshakeStreamReadyCallback();
   // This callback function is called when a new SPDY session is created.
@@ -222,6 +232,8 @@ class HttpStreamFactoryImpl::Job {
 
   bool IsRequestEligibleForPipelining();
 
+  void MaybeMarkAlternateProtocolBroken();
+
   // Record histograms of latency until Connect() completes.
   static void LogHttpConnectedMetrics(const ClientSocketHandle& handle);
 
@@ -331,6 +343,9 @@ class HttpStreamFactoryImpl::Job {
   // True if an existing pipeline can handle this job's request.
   bool existing_available_pipeline_;
 
+  JobStatus job_status_;
+  JobStatus other_job_status_;
+
   base::WeakPtrFactory<Job> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);