Revert 221713 "rAc: Wallet: UMA for wallet response codes."

> rAc: Wallet: UMA for wallet response codes.
> 
> BUG=261814
> 
> Review URL: https://chromiumcodereview.appspot.com/23461033

TBR=ramankk@chromium.org

Review URL: https://codereview.chromium.org/23604043

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221718 0039d316-1c4b-4281-b951-d872f2087c98

components/autofill/content/browser/wallet/wallet_client.cc

@@ -595,8 +595,6 @@ void WalletClient::OnURLFetchComplete(
   scoped_ptr<base::DictionaryValue> response_dict;
 
   int response_code = source->GetResponseCode();
-  delegate_->GetMetricLogger().LogWalletResponseCode(response_code);
-
   switch (response_code) {
     // HTTP_BAD_REQUEST means the arguments are invalid. No point retrying.
     case net::HTTP_BAD_REQUEST: {

components/autofill/core/browser/autofill_metrics.cc

@@ -6,7 +6,6 @@
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
-#include "base/metrics/sparse_histogram.h"
 #include "base/time/time.h"
 #include "components/autofill/core/browser/autofill_type.h"
 #include "components/autofill/core/browser/form_structure.h"
@@ -387,10 +386,6 @@ void AutofillMetrics::LogWalletRequiredActionMetric(
                             required_action, NUM_WALLET_REQUIRED_ACTIONS);
 }
 
-void AutofillMetrics::LogWalletResponseCode(int response_code) const {
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Wallet.ResponseCode", response_code);
-}
-
 void AutofillMetrics::LogDeveloperEngagementMetric(
     DeveloperEngagementMetric metric) const {
   DCHECK_LT(metric, NUM_DEVELOPER_ENGAGEMENT_METRICS);

components/autofill/core/browser/autofill_metrics.h

@@ -389,9 +389,6 @@ class AutofillMetrics {
   virtual void LogWalletRequiredActionMetric(
       WalletRequiredActionMetric required_action) const;
 
-  // Logs HTTP response codes recieved by wallet client.
-  virtual void LogWalletResponseCode(int response_code) const;
-
   // This should be called when a form that has been Autofilled is submitted.
   // |duration| should be the time elapsed between form load and submission.
   virtual void LogFormFillDurationFromLoadWithAutofill(

tools/metrics/histograms/histograms.xml

@@ -17436,10 +17436,6 @@ other types of suffix sets.
   </summary>
 </histogram>
 
-<histogram name="Wallet.ResponseCode" enum="HttpResponseCode">
-  <summary>HTTP response codes seen by Wallet client.</summary>
-</histogram>
-
 <histogram name="WebCore.Animation.CSSProperties" enum="MappedCSSProperties">
   <summary>
     Counts the number of times each CSS property is animated. There is no limit
@@ -21176,49 +21172,6 @@ other types of suffix sets.
   <int value="9" label="Corrupt stats response"/>
 </enum>
 
-<enum name="HttpResponseCode" type="int">
-  <int value="100" label="Continue"/>
-  <int value="101" label="Switching Protocols"/>
-  <int value="200" label="OK"/>
-  <int value="201" label="Created"/>
-  <int value="202" label="Accepted"/>
-  <int value="203" label="Non-Authoritative Information"/>
-  <int value="204" label="No Content"/>
-  <int value="205" label="Reset Content"/>
-  <int value="206" label="Partial Content"/>
-  <int value="300" label="Multiple Choices"/>
-  <int value="301" label="Moved Permanently"/>
-  <int value="302" label="Found"/>
-  <int value="303" label="See Other"/>
-  <int value="304" label="Not Modified"/>
-  <int value="305" label="Use Proxy"/>
-  <int value="306" label="(Unused)"/>
-  <int value="307" label="Temporary Redirect"/>
-  <int value="400" label="Bad Request"/>
-  <int value="401" label="Unauthorized"/>
-  <int value="402" label="Payment Required"/>
-  <int value="403" label="Forbidden"/>
-  <int value="404" label="Not Found"/>
-  <int value="405" label="Method Not Allowed"/>
-  <int value="406" label="Not Acceptable"/>
-  <int value="407" label="Proxy Authentication Required"/>
-  <int value="408" label="Request Timeout"/>
-  <int value="409" label="Conflict"/>
-  <int value="410" label="Gone"/>
-  <int value="411" label="Length Required"/>
-  <int value="412" label="Precondition Failed"/>
-  <int value="413" label="Request Entity Too Large"/>
-  <int value="414" label="Request-URI Too Long"/>
-  <int value="415" label="Unsupported Media Type"/>
-  <int value="416" label="Requested Range Not Satisfiable"/>
-  <int value="417" label="Expectation Failed"/>
-  <int value="500" label="Internal Server Error"/>
-  <int value="501" label="Not Implemented"/>
-  <int value="503" label="Service Unavailable"/>
-  <int value="504" label="Gateway Timeout"/>
-  <int value="505" label="HTTP Version Not Supported"/>
-</enum>
-
 <enum name="HttpSocketType" type="int">
   <int value="0" label="UNUSED">newly connected socket</int>
   <int value="1" label="UNUSED_IDLE">