IndexedDB: Switch key/value handling from vector<char> to std::string

content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc

Index: content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc b/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
index 3c94c52e92bc38169e2e10db431829054c1310ed..1f37a12f5e8166e40d2ffecad5f8db33cc1df46a 100644
--- a/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
@@ -10,11 +10,11 @@
 #include "content/browser/indexed_db/leveldb/leveldb_database.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using base::StringPiece;
 using content::IndexedDBBackingStore;
 using content::LevelDBComparator;
 using content::LevelDBDatabase;
 using content::LevelDBFactory;
-using content::LevelDBSlice;
 using content::LevelDBSnapshot;
 
 namespace {
@@ -26,7 +26,7 @@ class BustedLevelDBDatabase : public LevelDBDatabase {
       const LevelDBComparator* /*comparator*/) {
     return scoped_ptr<LevelDBDatabase>(new BustedLevelDBDatabase);
   }
-  virtual bool Get(const LevelDBSlice& key,
+  virtual bool Get(const base::StringPiece& key,
                    std::string* value,
                    bool* found,
                    const LevelDBSnapshot* = 0) OVERRIDE {