Bug 1304735 - Remove ClearHistogram r=chutten

MozReview-Commit-ID: Ez7u2gsRX6R

--HG--
extra : rebase_source : efcaba545b853bd6bb1df0ce85cd2b4c4cf33076

toolkit/components/telemetry/Telemetry.cpp

@@ -2841,12 +2841,6 @@ AccumulateChildKeyed(const nsTArray<KeyedAccumulation>& aAccumulations)
   TelemetryHistogram::AccumulateChildKeyed(aAccumulations);
 }
 
-void
-ClearHistogram(ID aId)
-{
-  TelemetryHistogram::ClearHistogram(aId);
-}
-
 const char*
 GetHistogramName(ID id)
 {

toolkit/components/telemetry/Telemetry.h

@@ -142,13 +142,6 @@ void AccumulateChild(const nsTArray<Accumulation>& aAccumulations);
  */
 void AccumulateChildKeyed(const nsTArray<KeyedAccumulation>& aAccumulations);
 
-/**
- * This clears the data for a histogram in TelemetryHistogramEnums.h.
- *
- * @param id - histogram id
- */
-void ClearHistogram(ID id);
-
 /**
  * Enable/disable recording for this histogram at runtime.
  * Recording is enabled by default, unless listed at kRecordingInitiallyDisabledIDs[].

toolkit/components/telemetry/TelemetryHistogram.cpp

@@ -2215,21 +2215,6 @@ TelemetryHistogram::AccumulateChildKeyed(const nsTArray<KeyedAccumulation>& aAcc
   }
 }
 
-void
-TelemetryHistogram::ClearHistogram(mozilla::Telemetry::ID aId)
-{
-  StaticMutexAutoLock locker(gTelemetryHistogramMutex);
-  if (!internal_CanRecordBase()) {
-    return;
-  }
-
-  Histogram *h;
-  nsresult rv = internal_GetHistogramByEnumId(aId, &h);
-  if (NS_SUCCEEDED(rv) && h) {
-    internal_HistogramClear(*h, false);
-  }
-}
-
 nsresult
 TelemetryHistogram::GetHistogramById(const nsACString &name, JSContext *cx,
                                      JS::MutableHandle<JS::Value> ret)

toolkit/components/telemetry/TelemetryHistogram.h

@@ -47,9 +47,6 @@ void AccumulateCategorical(mozilla::Telemetry::ID aId, const nsCString& aLabel);
 void AccumulateChild(const nsTArray<mozilla::Telemetry::Accumulation>& aAccumulations);
 void AccumulateChildKeyed(const nsTArray<mozilla::Telemetry::KeyedAccumulation>& aAccumulations);
 
-void
-ClearHistogram(mozilla::Telemetry::ID aId);
-
 nsresult
 GetHistogramById(const nsACString &name, JSContext *cx,
                  JS::MutableHandle<JS::Value> ret);