Create a class to represent a DOM Storage Database.

sql/statement.cc

Index: sql/statement.cc
diff --git a/sql/statement.cc b/sql/statement.cc
index a5daae49a6029f97b0950d4773a840cd5ac222cc..904d9ef4f1425ed4f37c192d2103e61e5c47a88e 100644
--- a/sql/statement.cc
+++ b/sql/statement.cc
@@ -4,6 +4,8 @@
 
 #include "sql/statement.h"
 
+#include <algorithm>
+
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/sqlite/sqlite3.h"
@@ -155,6 +157,23 @@ ColType Statement::ColumnType(int col) const {
   return static_cast<ColType>(sqlite3_column_type(ref_->stmt(), col));
 }
 
+ColType Statement::DeclaredColumnType(int col) const {
+  std::string column_type(sqlite3_column_decltype(ref_->stmt(), col));
+  std::transform(column_type.begin(), column_type.end(), column_type.begin(),
+                 ::tolower);
+
+  if (column_type == "integer")
+    return COLUMN_TYPE_INTEGER;
+  else if (column_type == "float")
+    return COLUMN_TYPE_FLOAT;
+  else if (column_type == "text")
+    return COLUMN_TYPE_TEXT;
+  else if (column_type == "blob")
+    return COLUMN_TYPE_BLOB;
+
+  return COLUMN_TYPE_NULL;
+}
+
 bool Statement::ColumnBool(int col) const {
   return !!ColumnInt(col);
 }
@@ -251,6 +270,19 @@ bool Statement::ColumnBlobAsVector(
   return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val));
 }
 
+bool Statement::ColumnBlobAsString16(int col, string16* val) const {
+  if (!CheckValid())
+    return false;
+
+  const void* data = sqlite3_column_blob(ref_->stmt(), col);
+  int len = sqlite3_column_bytes(ref_->stmt(), col);
+  if (data && len > 0) {
+    val->resize(len);
+    val->assign(reinterpret_cast<const char16*>(data));
+  }
+  return true;
+}
+
 const char* Statement::GetSQLStatement() {
   return sqlite3_sql(ref_->stmt());
 }