Add a counter to calculate the total size of site data.

chrome/browser/browsing_data/mock_browsing_data_appcache_helper.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 "chrome/browser/browsing_data/mock_browsing_data_appcache_helper.h"
 
 #include "base/callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 MockBrowsingDataAppCacheHelper::MockBrowsingDataAppCacheHelper(
     content::BrowserContext* browser_context)
-    : BrowsingDataAppCacheHelper(browser_context) {
+    : BrowsingDataAppCacheHelper(browser_context),
+      response_(new content::AppCacheInfoCollection) {
 }
 
 MockBrowsingDataAppCacheHelper::~MockBrowsingDataAppCacheHelper() {
 }
 
 void MockBrowsingDataAppCacheHelper::StartFetching(
     const FetchCallback& completion_callback) {
   ASSERT_FALSE(completion_callback.is_null());
   ASSERT_TRUE(completion_callback_.is_null());
   completion_callback_ = completion_callback;
 }
 
 void MockBrowsingDataAppCacheHelper::DeleteAppCacheGroup(
     const GURL& manifest_url) {
 }
+
+void MockBrowsingDataAppCacheHelper::AddAppCacheSamples() {
+  GURL kOrigin("http://hello/");
+  content::AppCacheInfo mock_manifest_1;
+  content::AppCacheInfo mock_manifest_2;
+  content::AppCacheInfo mock_manifest_3;
+  mock_manifest_1.manifest_url = kOrigin.Resolve("manifest1");
+  mock_manifest_1.size = 1;
+  mock_manifest_2.manifest_url = kOrigin.Resolve("manifest2");
+  mock_manifest_2.size = 2;
+  mock_manifest_3.manifest_url = kOrigin.Resolve("manifest3");
+  mock_manifest_3.size = 3;
+  content::AppCacheInfoVector info_vector;
+  info_vector.push_back(mock_manifest_1);
+  info_vector.push_back(mock_manifest_2);
+  info_vector.push_back(mock_manifest_3);
+  response_->infos_by_origin[kOrigin] = info_vector;
+}
+
+void MockBrowsingDataAppCacheHelper::Notify() {
+  completion_callback_.Run(response_);
+}