GTTF: Use a fresh TestingBrowserProcess for each test, part #4

chrome/browser/history/history_unittest.cc

 // Copyright (c) 2011 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.
 
 // History unit tests come in two flavors:
 //
 // 1. The more complicated style is that the unit test creates a full history
 //    service. This spawns a background thread for the history backend, and
 //    all communication is asynchronous. This is useful for testing more
 //    complicated things or end-to-end behavior.
@@ skipping 27 matching lines @@
 #include "chrome/browser/history/download_history_info.h"
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/history/history_backend.h"
 #include "chrome/browser/history/history_database.h"
 #include "chrome/browser/history/history_notifications.h"
 #include "chrome/browser/history/in_memory_database.h"
 #include "chrome/browser/history/in_memory_history_backend.h"
 #include "chrome/browser/history/page_usage_data.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/thumbnail_score.h"
+#include "chrome/test/testing_browser_process_test.h"
 #include "chrome/tools/profiles/thumbnail-inl.h"
 #include "content/common/notification_details.h"
 #include "content/common/notification_source.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 
 using base::Time;
@@ skipping 35 matching lines @@
   virtual void BroadcastNotifications(int type,
                                       HistoryDetails* details) OVERRIDE;
   virtual void DBLoaded() OVERRIDE {}
   virtual void StartTopSitesMigration() OVERRIDE {}
  private:
   HistoryTest* history_test_;
 };
 
 // This must be outside the anonymous namespace for the friend statement in
 // HistoryBackend to work.
-class HistoryTest : public testing::Test {
+class HistoryTest : public TestingBrowserProcessTest {
  public:
   HistoryTest()
       : history_service_(NULL),
         got_thumbnail_callback_(false),
         redirect_query_success_(false),
         query_url_success_(false),
         db_(NULL) {
   }
   ~HistoryTest() {
   }
@@ skipping 741 matching lines @@
   history_service_ = history;
   history->ScheduleDBTask(task.get(), &request_consumer);
   request_consumer.CancelAllRequests();
   CleanupHistoryService();
   // WARNING: history has now been deleted.
   history = NULL;
   ASSERT_FALSE(task->done_invoked);
 }
 
 }  // namespace history