IndexedDB: Numeric keys are floating point.

chrome/common/indexed_db_key.h

Index: chrome/common/indexed_db_key.h
diff --git a/chrome/common/indexed_db_key.h b/chrome/common/indexed_db_key.h
index 29c17921c7cc722ddabeea3e28036967ba85ef08..60b4529db87bce8272e6982ef3a5691f1c5e265d 100644
--- a/chrome/common/indexed_db_key.h
+++ b/chrome/common/indexed_db_key.h
@@ -19,19 +19,19 @@ class IndexedDBKey {
   void SetNull();
   void SetInvalid();
   void Set(const string16& string);
-  void Set(int32_t number);
+  void Set(double number);
   void Set(const WebKit::WebIDBKey& key);
 
   WebKit::WebIDBKey::Type type() const { return type_; }
   const string16& string() const { return string_; }
-  int32_t number() const { return number_; }
+  double number() const { return number_; }
 
   operator WebKit::WebIDBKey() const;
 
  private:
   WebKit::WebIDBKey::Type type_;
   string16 string_;
-  int32_t number_;
+  double number_;
 };
 
 #endif  // CHROME_COMMON_INDEXED_DB_KEY_H_