Handle early pause, cancel for parallel requests.

content/browser/download/parallel_download_job.h

Index: content/browser/download/parallel_download_job.h
diff --git a/content/browser/download/parallel_download_job.h b/content/browser/download/parallel_download_job.h
index 3beafc979b735250dae963ae2e8680637a15aa65..a95a59d52bc54417545aee4a399f643621d6c579 100644
--- a/content/browser/download/parallel_download_job.h
+++ b/content/browser/download/parallel_download_job.h
@@ -39,12 +39,16 @@ class CONTENT_EXPORT ParallelDownloadJob : public DownloadJobImpl,
   // Virtual for testing.
   virtual int GetParallelRequestCount() const;
 
- private:
-  friend class ParallelDownloadJobTest;
-
   using WorkerMap =
       std::unordered_map<int64_t, std::unique_ptr<DownloadWorker>>;
 
+  // Map from the offset position of the slice to the worker that downloads the
+  // slice.
+  WorkerMap workers_;
+
+ private:
+  friend class ParallelDownloadJobTest;
+
   // DownloadWorker::Delegate implementation.
   void OnByteStreamReady(
       DownloadWorker* worker,
@@ -74,10 +78,6 @@ class CONTENT_EXPORT ParallelDownloadJob : public DownloadJobImpl,
   // the size of the target file if the request starts from non-zero offset.
   int64_t content_length_;
 
-  // Map from the offset position of the slice to the worker that downloads the
-  // slice.
-  WorkerMap workers_;
-
   // Used to send parallel requests after a delay based on Finch config.
   base::OneShotTimer timer_;