Remove an unused MetricsServiceAccessor API.

Bug: None
Change-Id: If395ad9984c944efd609f7ea2c9c86ee3f904d71
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2324882Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792693}

chrome/browser/metrics/chrome_metrics_service_accessor.cc

@@ -75,15 +75,6 @@ bool ChromeMetricsServiceAccessor::RegisterSyntheticMultiGroupFieldTrial(
       g_browser_process->metrics_service(), trial_name, group_name_hashes);
 }
 
-// static
-bool ChromeMetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameHash(
-    uint32_t trial_name_hash,
-    base::StringPiece group_name) {
-  return metrics::MetricsServiceAccessor::
-      RegisterSyntheticFieldTrialWithNameHash(
-          g_browser_process->metrics_service(), trial_name_hash, group_name);
-}
-
 // static
 void ChromeMetricsServiceAccessor::SetForceIsMetricsReportingEnabledPrefLookup(
     bool value) {

chrome/browser/metrics/chrome_metrics_service_accessor.h

@@ -153,14 +153,6 @@ class ChromeMetricsServiceAccessor : public metrics::MetricsServiceAccessor {
       base::StringPiece trial_name,
       const std::vector<uint32_t>& group_name_hashes);
 
-  // Calls
-  // metrics::MetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameHash()
-  // with g_browser_process->metrics_service(). See that function's declaration
-  // for details.
-  static bool RegisterSyntheticFieldTrialWithNameHash(
-      uint32_t trial_name_hash,
-      base::StringPiece group_name);
-
   // Cover for function of same name in MetricsServiceAccssor. See
   // ChromeMetricsServiceAccessor for details.
   static void SetForceIsMetricsReportingEnabledPrefLookup(bool value);

components/metrics/metrics_service_accessor.cc

@@ -60,15 +60,6 @@ bool MetricsServiceAccessor::RegisterSyntheticMultiGroupFieldTrial(
   return true;
 }
 
-// static
-bool MetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameHash(
-    MetricsService* metrics_service,
-    uint32_t trial_name_hash,
-    base::StringPiece group_name) {
-  return RegisterSyntheticFieldTrialWithNameAndGroupHash(
-      metrics_service, trial_name_hash, variations::HashName(group_name));
-}
-
 // static
 bool MetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameAndGroupHash(
     MetricsService* metrics_service,

components/metrics/metrics_service_accessor.h

@@ -51,13 +51,6 @@ class MetricsServiceAccessor {
       base::StringPiece trial_name,
       const std::vector<uint32_t>& group_name_hashes);
 
-  // Same as RegisterSyntheticFieldTrial above, but takes in the trial name as a
-  // hash rather than computing the hash from the string.
-  static bool RegisterSyntheticFieldTrialWithNameHash(
-      MetricsService* metrics_service,
-      uint32_t trial_name_hash,
-      base::StringPiece group_name);
-
   // Same as RegisterSyntheticFieldTrial above, but takes in the trial and group
   // names as hashes rather than computing those hashes from the strings.
   static bool RegisterSyntheticFieldTrialWithNameAndGroupHash(

ios/chrome/browser/metrics/ios_chrome_metrics_service_accessor.cc

@@ -39,13 +39,3 @@ bool IOSChromeMetricsServiceAccessor::RegisterSyntheticFieldTrial(
   return metrics::MetricsServiceAccessor::RegisterSyntheticFieldTrial(
       GetApplicationContext()->GetMetricsService(), trial_name, group_name);
 }
-
-// static
-bool IOSChromeMetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameHash(
-    uint32_t trial_name_hash,
-    const std::string& group_name) {
-  return metrics::MetricsServiceAccessor::
-      RegisterSyntheticFieldTrialWithNameHash(
-          GetApplicationContext()->GetMetricsService(), trial_name_hash,
-          group_name);
-}

ios/chrome/browser/metrics/ios_chrome_metrics_service_accessor.h

@@ -46,14 +46,6 @@ class IOSChromeMetricsServiceAccessor : public metrics::MetricsServiceAccessor {
   static bool RegisterSyntheticFieldTrial(const std::string& trial_name,
                                           const std::string& group_name);
 
-  // Calls
-  // metrics::MetricsServiceAccessor::RegisterSyntheticFieldTrialWithNameHash()
-  // with ApplicationContext's MetricsService. See that function's declaration
-  // for details.
-  static bool RegisterSyntheticFieldTrialWithNameHash(
-      uint32_t trial_name_hash,
-      const std::string& group_name);
-
   DISALLOW_IMPLICIT_CONSTRUCTORS(IOSChromeMetricsServiceAccessor);
 };