Remove some unused proxy-related histograms.

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 81876566246a806ffde8e6021970615c06b776b7..90404156bf1d9d523909904a0682b84957fac260 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -15027,6 +15027,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadCancelTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Measures time from initiating a fetch of a PAC file from DHCP WPAD to
@@ -15036,6 +15039,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadCompletionTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Measures time from initiating a fetch of a PAC file from DHCP WPAD to
@@ -15045,6 +15051,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadFetchError" enum="NetErrorCodes">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Tracks the net error codes received when the DHCP WPAD fetch fails to
@@ -15055,6 +15064,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.DhcpWpadGetAdaptersAddressesError"
     enum="ErrorCodesGetAdaptersAddresses">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Tracks the frequency of each of the different known error codes of calling
@@ -15063,6 +15075,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadGetAdaptersAddressesTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Measures the time taken to call the GetAdaptersAddresses Win32 API, to
@@ -15072,6 +15087,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadNumAdaptersAtWaitTimer">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Total number of adapters enabled for DHCP as seen when the wait timer in the
@@ -15081,6 +15099,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadNumPendingAdaptersAtWaitTimer">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Number of adapters enabled for DHCP that we have not completed retrieving
@@ -15091,6 +15112,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.DhcpWpadUnhandledDhcpError">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     Counts the number of errors from the DhcpRequestParams API that we do not
@@ -15406,6 +15430,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.GetProxyForUrl_FAIL" units="milliseconds">
+  <obsolete>
+    Removed at some time before 2014/09/15.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The time spent waiting for WinHttpGetProxyForUrl to return with error.
@@ -15413,6 +15440,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.GetProxyForUrl_OK" units="milliseconds">
+  <obsolete>
+    Removed at some time before 2014/09/15.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The time spent waiting for WinHttpGetProxyForUrl to return with success.
@@ -15807,6 +15837,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.MTPR_GetProxyForUrl_Thread_Wait_Time" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The time that a (non-cancelled) proxy resolution request was stalled waiting
@@ -15815,6 +15848,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.MTPR_GetProxyForUrl_Time" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that it took for a (non-cancelled) proxy resolution request
@@ -16172,6 +16208,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyPollConfigurationTime">
+  <obsolete>
+    Removed at some time before 2014/09/15.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The time in milliseconds spent fetch the system proxy configuration, when
@@ -16181,6 +16220,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.AbandonedExecutionTotalTime"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total amount of time that was spent executing the proxy script during
@@ -16191,6 +16233,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.AbandonedExecutionTotalTime"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total amount of time that was spent executing the proxy script during
@@ -16201,6 +16246,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.DnsWaitTotalTime"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total amount of time that was spent in the non-blocking DNS bindings
@@ -16211,6 +16259,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.ExecutionTime"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The amount of time inside of V8 that the proxy script spent executing for
@@ -16220,6 +16271,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.NumAlerts">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of times that alert() was called in the final execution of the
@@ -16228,6 +16282,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.NumErrors">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of errors that were seen in the final execution of the script.
@@ -16235,6 +16292,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.NumRestarts">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of times that the PAC script execution was restarted.
@@ -16243,6 +16303,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.TotalTime"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that the proxy resolution took. This includes all the time
@@ -16252,6 +16315,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.TotalTimeDNS"
     units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that proxy resolution spent waiting for DNS. This also
@@ -16261,6 +16327,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.BlockingDNSMode.UniqueDNS">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of unique DNS hostnames that the PAC script tried to resolve. The
@@ -16269,6 +16338,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.DnsWaitTotalTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total amount of time that was spent in the non-blocking DNS bindings
@@ -16278,6 +16350,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.ExecutionTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The amount of time inside of V8 that the proxy script spent executing for
@@ -16288,6 +16363,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.NumAlerts">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of times that alert() was called in the final execution of the
@@ -16296,6 +16374,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.NumErrors">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of errors that were seen in the final execution of the script.
@@ -16303,6 +16384,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.NumRestarts">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of times that the PAC script execution was restarted.
@@ -16310,6 +16394,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.OriginThreadLatency" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The amount of time it took upon completion to run the final task posted back
@@ -16318,6 +16405,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.TotalTime" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that the proxy resolution took. This includes all the time
@@ -16326,6 +16416,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.TotalTimeDNS" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that proxy resolution spent waiting for DNS. This also
@@ -16335,6 +16428,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.TotalTimeWorkerThread" units="milliseconds">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The total time that the proxy resolution took, not including the post back
@@ -16344,6 +16440,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.UniqueDNS">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>
     The number of unique DNS hostnames that the PAC script tried to resolve. The
@@ -16352,6 +16451,9 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.ProxyResolver.URLSize">
+  <obsolete>
+    Removed in Chrome 39.
+  </obsolete>
   <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
   <summary>The length of the URL that was passed into the PAC script.</summary>
 </histogram>