[Downloads] Deprecate incorrect metrics.

content/browser/download/download_stats.h

Index: content/browser/download/download_stats.h
diff --git a/content/browser/download/download_stats.h b/content/browser/download/download_stats.h
index 297d21a12d590e0092a1b39b400f61444e3b3766..ab6003c2f73540517276c8a81530ed0c1438c253 100644
--- a/content/browser/download/download_stats.h
+++ b/content/browser/download/download_stats.h
@@ -166,20 +166,10 @@ void RecordDownloadMimeType(const std::string& mime_type);
 // Records usage of Content-Disposition header.
 void RecordDownloadContentDisposition(const std::string& content_disposition);
 
-// Record WRITE_SIZE_COUNT and data_len.
-void RecordDownloadWriteSize(size_t data_len);
-
-// Record WRITE_LOOP_COUNT and number of loops.
-void RecordDownloadWriteLoopCount(int count);
-
 // Record the number of buffers piled up by the IO thread
 // before the file thread gets to draining them.
 void RecordFileThreadReceiveBuffers(size_t num_buffers);
 
-// Record the bandwidth seen in DownloadResourceHandler
-// |actual_bandwidth| and |potential_bandwidth| are in bytes/second.
-void RecordBandwidth(double actual_bandwidth, double potential_bandwidth);
-
 // Record the time of both the first open and all subsequent opens since the
 // download completed.
 void RecordOpen(const base::Time& end, bool first);