Sanitize PrefStore interface.

chrome/browser/metrics/metrics_service_uitest.cc

 // Copyright (c) 2010 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.
 
 // Tests the MetricsService stat recording to make sure that the numbers are
 // what we expect.
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/platform_thread.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/prefs/pref_service_mock_builder.h"
 #include "chrome/browser/prefs/pref_value_store.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/json_pref_store.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "chrome/test/automation/browser_proxy.h"
 #include "chrome/test/automation/tab_proxy.h"
-#include "chrome/test/automation/browser_proxy.h"
 #include "chrome/test/ui/ui_test.h"
 #include "net/base/net_util.h"
 
 class MetricsServiceTest : public UITest {
  public:
   MetricsServiceTest() : UITest() {
     // We need to show the window so web content type tabs load.
     show_window_ = true;
   }
 
@@ skipping 10 matching lines @@
     FilePath page2_path;
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &page2_path));
     page2_path = page2_path.AppendASCII("iframe.html");
     ASSERT_TRUE(window->AppendTab(net::FilePathToFileURL(page2_path)));
   }
 
   // Get a PrefService whose contents correspond to the Local State file
   // that was saved by the app as it closed.  The caller takes ownership of the
   // returned PrefService object.
   PrefService* GetLocalState() {
-    FilePath local_state_path = user_data_dir()
-        .Append(chrome::kLocalStateFilename);
-
-    return PrefService::CreateUserPrefService(local_state_path);
+    FilePath path = user_data_dir().Append(chrome::kLocalStateFilename);
+    return PrefServiceMockBuilder().WithUserFilePrefs(path).Create();
   }
 };
 
 TEST_F(MetricsServiceTest, CloseRenderersNormally) {
   OpenTabs();
   QuitBrowser();
 
   scoped_ptr<PrefService> local_state(GetLocalState());
   local_state->RegisterBooleanPref(prefs::kStabilityExitedCleanly, true);
   local_state->RegisterIntegerPref(prefs::kStabilityLaunchCount, 0);
@@ skipping 40 matching lines @@
   scoped_ptr<PrefService> local_state(GetLocalState());
   local_state->RegisterBooleanPref(prefs::kStabilityExitedCleanly, true);
   local_state->RegisterIntegerPref(prefs::kStabilityLaunchCount, 0);
   local_state->RegisterIntegerPref(prefs::kStabilityPageLoadCount, 0);
   local_state->RegisterIntegerPref(prefs::kStabilityRendererCrashCount, 0);
   EXPECT_TRUE(local_state->GetBoolean(prefs::kStabilityExitedCleanly));
   EXPECT_EQ(1, local_state->GetInteger(prefs::kStabilityLaunchCount));
   EXPECT_EQ(4, local_state->GetInteger(prefs::kStabilityPageLoadCount));
   EXPECT_EQ(1, local_state->GetInteger(prefs::kStabilityRendererCrashCount));
 }