Replace HistoryQuickProvider protobuf-based caching with an SQLite-based database.

chrome/test/base/testing_profile.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/test/base/testing_profile.h"
 
 #include "build/build_config.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
@@ skipping 301 matching lines @@
   return new HistoryService(profile);
 }
 
 void TestingProfile::CreateHistoryService(bool delete_file, bool no_db) {
   DestroyHistoryService();
   if (delete_file) {
     FilePath path = GetPath();
     path = path.Append(chrome::kHistoryFilename);
     file_util::Delete(path, false);
   }
-  // This will create and init the history service.
   HistoryService* history_service = static_cast<HistoryService*>(
       HistoryServiceFactory::GetInstance()->SetTestingFactoryAndUse(
           this, BuildHistoryService).get());
-  if (!history_service->Init(this->GetPath(),
-                             BookmarkModelFactory::GetForProfile(this),
-                             no_db)) {
+  if (!InitHistoryService(history_service, no_db))
     HistoryServiceFactory::GetInstance()->SetTestingFactoryAndUse(this, NULL);
-  }
+}
+
+bool TestingProfile::InitHistoryService(HistoryService* history_service,
+                                        bool no_db) {
+  DCHECK(history_service);
+  // By default, disable the InMemoryURLIndex's cache database.
+  return history_service->Init(GetPath(),
+                               BookmarkModelFactory::GetForProfile(this),
+                               no_db, true);
 }
 
 void TestingProfile::DestroyHistoryService() {
   scoped_refptr<HistoryService> history_service =
       HistoryServiceFactory::GetForProfileWithoutCreating(this);
   if (!history_service.get())
     return;
 
   history_service->NotifyRenderProcessHostDestruction(0);
   history_service->SetOnBackendDestroyTask(MessageLoop::QuitClosure());
@@ skipping 464 matching lines @@
   build_called_ = true;
   return scoped_ptr<TestingProfile>(new TestingProfile(
       path_,
       delegate_,
       extension_policy_,
       pref_service_.Pass(),
       user_cloud_policy_manager_.Pass()));
 }