Remove net::Filter code

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 901af086a1fe499284aef6bca38b20847c99bb49..a40771ebf438567397747ec16f57afc824b37391 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -55346,6 +55346,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Experiment_Holdback_1st_To_2nd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55361,6 +55364,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Experiment_Holdback_1st_To_Last_a" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The duration between receipt of the 1st holdback (non-SDCH encoded) packet
@@ -55370,6 +55376,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Experiment_Holdback_2nd_To_3rd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55385,6 +55394,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Experiment_Holdback_3rd_To_4th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55400,6 +55412,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Experiment_Holdback_4th_To_5th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55415,6 +55430,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.FilterUseBeforeDisabling">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If SDCH decoding was disabled client side, this records how many URLs were
@@ -55437,6 +55455,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_1st_To_2nd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55449,6 +55470,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_1st_To_Last_a" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The duration between receipt of the 1st SDCH encoded packet and receipt of
@@ -55457,6 +55481,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_2nd_To_3rd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55469,6 +55496,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_3rd_To_4th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55481,6 +55511,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_4th_To_5th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55493,6 +55526,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Bytes_Processed_a" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     (discontinued 7/29/2009, and replaced by
@@ -55502,6 +55538,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Bytes_Processed_b" units="bytes">

[mmenke, 2016/11/09 17:15:44]

Processed_a is gone, but it looks like this one is still in
url_request_http_job.cc.

[mmenke, 2016/11/09 17:16:42]

If Randy doesn't object, I'd suggest just removing it in this CL.

[xunjieli, 2016/11/09 21:23:22]

Done. Good catch! I think I will not deprecate this in this CL since it is still
being used. But I agree with you that we might want to remove it ultimately if
the histogram is no longer meaningful.

+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The number of bytes processed (received over the net or from cache) by the
@@ -55510,6 +55549,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Bytes_VcdiffOut_a" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The number of bytes emitted after decoding by the SDCH filter.
@@ -55517,6 +55559,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Latency_F_a" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The duration between putting the first byte of a request (such as a GET) on
@@ -55528,6 +55573,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Packets_b">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     An approximation to the total number of SDCH encoded packets received for
@@ -55539,6 +55587,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Decode_Ratio_a" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The ratio of the number of bytes read from the network (or cache) and fed to
@@ -55549,6 +55600,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_1st_To_2nd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55561,6 +55615,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_1st_To_Last_a" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The duration between receipt of the 1st **NON**-SDCH encoded packet to
@@ -55569,6 +55626,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_2nd_To_3rd_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55581,6 +55641,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_3rd_To_4th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55593,6 +55656,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_4th_To_5th_c" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     Sampling only transmissions with 5 or more packets, the duration between
@@ -55605,6 +55671,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_Latency_F_a" units="ms">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The duration between putting the first byte of a request (such as a GET) on
@@ -55617,6 +55686,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.Network_Pass-through_Packets_b">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     The total number of **NON**-SDCH encoded packets received for processing by
@@ -55628,6 +55700,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.NetworkBytesSavedByCompression" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>ellyjones@chromium.org</owner>
   <summary>
     The absolute difference in bytes between the amount of data entering the
@@ -55644,6 +55719,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.PartialBytesIn" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode INCOMPLETE_SDCH_CONTENT reports that the VCDIFF
@@ -55655,6 +55733,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.PartialVcdiffIn" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode INCOMPLETE_SDCH_CONTENT reports that the VCDIFF
@@ -55665,6 +55746,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.PartialVcdiffOut" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode INCOMPLETE_SDCH_CONTENT reports that the VCDIFF
@@ -55736,6 +55820,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.UnflushedBufferSize" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode UNFLUSHED_CONTENT reports that the SDCH filter is
@@ -55745,6 +55832,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.UnflushedBytesIn" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode UNFLUSHED_CONTENT reports that the SDCH filter is
@@ -55756,6 +55846,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.UnflushedVcdiffIn" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode UNFLUSHED_CONTENT reports that the SDCH filter is
@@ -55766,6 +55859,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Sdch3.UnflushedVcdiffOut" units="bytes">
+  <obsolete>
+    Deprecated 2016-11.
+  </obsolete>
   <owner>rdsmith@chromium.org</owner>
   <summary>
     If/when a ProblemCode UNFLUSHED_CONTENT reports that the SDCH filter is