Enable SiteEngagementEvictionPolicy behind --enable-site-eviction-policy flag.

content/public/browser/content_browser_client.cc

 // Copyright (c) 2012 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 "content/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/common/sandbox_type.h"
+#include "storage/browser/quota/quota_manager.h"
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
 namespace content {
 
 BrowserMainParts* ContentBrowserClient::CreateBrowserMainParts(
     const MainFunctionParams& parameters) {
   return nullptr;
 }
 
@@ skipping 188 matching lines @@
                                                     const GURL& first_party_url,
                                                     ResourceContext* context) {
   return true;
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 QuotaPermissionContext* ContentBrowserClient::CreateQuotaPermissionContext() {
   return nullptr;
 }
 
+scoped_ptr<storage::QuotaEvictionPolicy>
+ContentBrowserClient::GetTemporaryStorageEvictionPolicy(
+    content::BrowserContext* context) {
+  return scoped_ptr<storage::QuotaEvictionPolicy>();
+}
+
 void ContentBrowserClient::SelectClientCertificate(
     WebContents* web_contents,
     net::SSLCertRequestInfo* cert_request_info,
     scoped_ptr<ClientCertificateDelegate> delegate) {
 }
 
 net::URLRequestContext* ContentBrowserClient::OverrideRequestContextForURL(
     const GURL& url, ResourceContext* context) {
   return nullptr;
 }
@@ skipping 166 matching lines @@
 #if defined(VIDEO_HOLE)
 ExternalVideoSurfaceContainer*
 ContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     WebContents* web_contents) {
   NOTREACHED() << "Hole-punching is not supported. See crbug.com/469348.";
   return nullptr;
 }
 #endif
 
 }  // namespace content