Remove Enumeration Histograms from the Blink Platform API.

third_party/WebKit/Source/modules/cachestorage/Cache.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/cachestorage/Cache.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8ThrowException.h"
 #include "bindings/modules/v8/V8Response.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "modules/cachestorage/CacheStorageError.h"
 #include "modules/fetch/BodyStreamBuffer.h"
 #include "modules/fetch/FetchDataLoader.h"
 #include "modules/fetch/GlobalFetch.h"
 #include "modules/fetch/Request.h"
 #include "modules/fetch/Response.h"
 #include "platform/HTTPNames.h"
-#include "public/platform/Platform.h"
+#include "platform/Histogram.h"
 #include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerCache.h"
 
 namespace blink {
 
 namespace {
 
 void checkCacheQueryOptions(const CacheQueryOptions& options, ExecutionContext* context)
 {
     if (options.ignoreSearch())
@@ skipping 151 matching lines @@
     case FetchResponseData::ErrorType:
         type = ResponseType::ErrorType;
         break;
     case FetchResponseData::OpaqueType:
         type = ResponseType::OpaqueType;
         break;
     case FetchResponseData::OpaqueRedirectType:
         type = ResponseType::OpaqueRedirectType;
         break;
     }
-    Platform::current()->histogramEnumeration("ServiceWorkerCache.Cache.AddResponseType", static_cast<int>(type), static_cast<int>(ResponseType::EnumMax));
+    DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, responseTypeHistogram, new EnumerationHistogram("ServiceWorkerCache.Cache.AddResponseType", static_cast<int>(ResponseType::EnumMax)));
+    responseTypeHistogram.count(static_cast<int>(type));
 };
 
 } // namespace
 
 // TODO(nhiroki): Unfortunately, we have to go through V8 to wait for the fetch
 // promise. It should be better to achieve this only within C++ world.
 class Cache::FetchResolvedForAdd final : public ScriptFunction {
 public:
     static v8::Local<v8::Function> create(ScriptState* scriptState, Cache* cache, const HeapVector<Member<Request>>& requests)
     {
@@ skipping 382 matching lines @@
     m_webCache->dispatchKeys(new CacheWithRequestsCallbacks(resolver), 0, toWebQueryParams(options));
     return promise;
 }
 
 WebServiceWorkerCache* Cache::webCache() const
 {
     return m_webCache.get();
 }
 
 } // namespace blink