[sql] Disable memory-mapping under sql::Recovery.

sql/recovery.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 "sql/recovery.h"
 
 #include "base/files/file_path.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 123 matching lines @@
   r->Shutdown(POISON);
 }
 
 Recovery::Recovery(Connection* connection)
     : db_(connection),
       recover_db_() {
   // Result should keep the page size specified earlier.
   if (db_->page_size_)
     recover_db_.set_page_size(db_->page_size_);
 
+  // Files with I/O errors cannot be safely memory-mapped.
+  recover_db_.set_mmap_disabled();
+
   // TODO(shess): This may not handle cases where the default page
   // size is used, but the default has changed.  I do not think this
   // has ever happened.  This could be handled by using "PRAGMA
   // page_size", at the cost of potential additional failure cases.
 }
 
 Recovery::~Recovery() {
   Shutdown(RAZE_AND_POISON);
 }
 
@@ skipping 368 matching lines @@
     }
     return false;
   }
 
   RecordRecoveryEvent(RECOVERY_SUCCESS_META_VERSION);
   *version = recovery_version.ColumnInt(0);
   return true;
 }
 
 }  // namespace sql