Remove Enumeration Histograms from the Blink Platform API.

third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 17 matching lines @@
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "bindings/core/v8/Nullable.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/modules/v8/V8BindingForModules.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/events/EventQueue.h"
 #include "modules/indexeddb/IDBAny.h"
 #include "modules/indexeddb/IDBEventDispatcher.h"
-#include "modules/indexeddb/IDBHistograms.h"
 #include "modules/indexeddb/IDBIndex.h"
 #include "modules/indexeddb/IDBKeyPath.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBVersionChangeEvent.h"
 #include "modules/indexeddb/WebIDBDatabaseCallbacksImpl.h"
-#include "public/platform/Platform.h"
+#include "platform/Histogram.h"
 #include "public/platform/modules/indexeddb/WebIDBKeyPath.h"
 #include "public/platform/modules/indexeddb/WebIDBTypes.h"
 #include "wtf/Atomics.h"
 #include <limits>
 
 using blink::WebIDBDatabase;
 
 namespace blink {
 
 const char IDBDatabase::indexDeletedErrorMessage[] = "The index or its object store has been deleted.";
@@ skipping 118 matching lines @@
 {
     if (m_metadata.intVersion == IDBDatabaseMetadata::NoIntVersion)
         result.setString(m_metadata.version);
     else
         result.setUnsignedLongLong(m_metadata.intVersion);
 }
 
 IDBObjectStore* IDBDatabase::createObjectStore(const String& name, const IDBKeyPath& keyPath, bool autoIncrement, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBDatabase::createObjectStore");
-    Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBCreateObjectStoreCall, IDBMethodsMax);
+    recordApiCallsHistogram(IDBCreateObjectStoreCall);
+
     if (!m_versionChangeTransaction) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::notVersionChangeTransactionErrorMessage);
         return nullptr;
     }
     if (m_versionChangeTransaction->isFinished() || m_versionChangeTransaction->isFinishing()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
         return nullptr;
     }
     if (!m_versionChangeTransaction->isActive()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
@@ skipping 28 matching lines @@
     m_metadata.objectStores.set(metadata.id, metadata);
     ++m_metadata.maxObjectStoreId;
 
     m_versionChangeTransaction->objectStoreCreated(name, objectStore);
     return objectStore;
 }
 
 void IDBDatabase::deleteObjectStore(const String& name, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBDatabase::deleteObjectStore");
-    Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBDeleteObjectStoreCall, IDBMethodsMax);
+    recordApiCallsHistogram(IDBDeleteObjectStoreCall);
     if (!m_versionChangeTransaction) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::notVersionChangeTransactionErrorMessage);
         return;
     }
     if (m_versionChangeTransaction->isFinished() || m_versionChangeTransaction->isFinishing()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
         return;
     }
     if (!m_versionChangeTransaction->isActive()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
@@ skipping 12 matching lines @@
     }
 
     m_backend->deleteObjectStore(m_versionChangeTransaction->id(), objectStoreId);
     m_versionChangeTransaction->objectStoreDeleted(name);
     m_metadata.objectStores.remove(objectStoreId);
 }
 
 IDBTransaction* IDBDatabase::transaction(ScriptState* scriptState, const StringOrStringSequenceOrDOMStringList& storeNames, const String& modeString, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBDatabase::transaction");
-    Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBTransactionCall, IDBMethodsMax);
+    recordApiCallsHistogram(IDBTransactionCall);
 
     HashSet<String> scope;
     if (storeNames.isString()) {
         scope.add(storeNames.getAsString());
     } else if (storeNames.isStringSequence()) {
         for (const String& name : storeNames.getAsStringSequence())
             scope.add(name);
     } else if (storeNames.isDOMStringList()) {
         const Vector<String>& list = *storeNames.getAsDOMStringList();
         for (const String& name : list)
@@ skipping 170 matching lines @@
 const AtomicString& IDBDatabase::interfaceName() const
 {
     return EventTargetNames::IDBDatabase;
 }
 
 ExecutionContext* IDBDatabase::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
+void IDBDatabase::recordApiCallsHistogram(IndexedDatabaseMethods method)
+{
+    DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, apiCallsHistogram, new EnumerationHistogram("WebCore.IndexedDB.FrontEndAPICalls", IDBMethodsMax));
+    apiCallsHistogram.count(method);
+}
+
 } // namespace blink