Revert 152946 - Replace HistoryQuickProvider protobuf-based caching with an SQLite-based database.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
===================================================================
--- chrome/test/base/testing_profile.cc	(revision 152962)
+++ chrome/test/base/testing_profile.cc	(working copy)
@@ -319,22 +319,17 @@
     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 (!InitHistoryService(history_service, no_db))
+  if (!history_service->Init(this->GetPath(),
+                             BookmarkModelFactory::GetForProfile(this),
+                             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);