Try to reset quota database which is suspected to be corrupted

storage/browser/quota/quota_database.cc

 // Copyright 2013 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 "storage/browser/quota/quota_database.h"
 
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 441 matching lines @@
     opened = db_->OpenInMemory();
   } else if (!base::CreateDirectory(db_file_path_.DirName())) {
       LOG(ERROR) << "Failed to create quota database directory.";
   } else {
     opened = db_->Open(db_file_path_);
     if (opened)
       db_->Preload();
   }
 
   if (!opened || !EnsureDatabaseVersion()) {
-    LOG(ERROR) << "Failed to open the quota database.";
-    is_disabled_ = true;
-    db_.reset();
-    meta_table_.reset();
-    return false;
+    LOG(ERROR) << "Could not open the quota database: "
+               << "probably database is currupted. "
+               << "Trying to reset...";
+    if (!ResetSchema()) {
+      LOG(ERROR) << "Failed to reset the quota database.";
+      is_disabled_ = true;
+      db_.reset();
+      meta_table_.reset();
+      return false;
+    }
   }
 
   // Start a long-running transaction.
   db_->BeginTransaction();
 
   return true;
 }
 
 bool QuotaDatabase::EnsureDatabaseVersion() {
   static const size_t kTableCount = arraysize(kTables);
@@ skipping 168 matching lines @@
   if (lhs.origin < rhs.origin) return true;
   if (rhs.origin < lhs.origin) return false;
   if (lhs.type < rhs.type) return true;
   if (rhs.type < lhs.type) return false;
   if (lhs.used_count < rhs.used_count) return true;
   if (rhs.used_count < lhs.used_count) return false;
   return lhs.last_access_time < rhs.last_access_time;
 }
 
 }  // namespace storage