Change InMemoryContentStore to use MRUCache.

components/dom_distiller/core/dom_distiller_service.cc

 // Copyright 2013 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 "components/dom_distiller/core/dom_distiller_service.h"
 
 #include "base/guid.h"
 #include "base/message_loop/message_loop.h"
 #include "components/dom_distiller/core/distilled_content_store.h"
 #include "components/dom_distiller/core/dom_distiller_store.h"
@@ skipping 23 matching lines @@
   article_cb.Run(distillation_succeeded);
 }
 
 }  // namespace
 
 DomDistillerService::DomDistillerService(
     scoped_ptr<DomDistillerStoreInterface> store,
     scoped_ptr<DistillerFactory> distiller_factory,
     scoped_ptr<DistillerPageFactory> distiller_page_factory)
     : store_(store.Pass()),
-      content_store_(new InMemoryContentStore()),
+      content_store_(new InMemoryContentStore(kDefaultMaxNumCachedEntries)),
       distiller_factory_(distiller_factory.Pass()),
       distiller_page_factory_(distiller_page_factory.Pass()) {
 }
 
 DomDistillerService::~DomDistillerService() {
 }
 
 syncer::SyncableService* DomDistillerService::GetSyncableService() const {
   return store_->GetSyncableService();
 }
@@ skipping 178 matching lines @@
   DCHECK(observer);
   store_->AddObserver(observer);
 }
 
 void DomDistillerService::RemoveObserver(DomDistillerObserver* observer) {
   DCHECK(observer);
   store_->RemoveObserver(observer);
 }
 
 }  // namespace dom_distiller