Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

base/values.h

Index: base/values.h
diff --git a/base/values.h b/base/values.h
index 7feef9da541b0d00990510047ce7a7717cab0a9f..0ff62170edb7841df12f22b3e281406b2c336890 100644
--- a/base/values.h
+++ b/base/values.h
@@ -30,6 +30,7 @@
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "base/strings/string_piece.h"
 
 namespace base {
 
@@ -270,8 +271,8 @@ class BASE_EXPORT DictionaryValue : public Value {
   // Otherwise, it will return false and |out_value| will be untouched.
   // Note that the dictionary always owns the value that's returned.
   // |out_value| is optional and will only be set if non-NULL.
-  bool Get(const std::string& path, const Value** out_value) const;
-  bool Get(const std::string& path, Value** out_value);
+  bool Get(StringPiece path, const Value** out_value) const;
+  bool Get(StringPiece path, Value** out_value);
 
   // These are convenience forms of Get().  The value will be retrieved
   // and the return value will be true if the path is valid and the value at
@@ -287,9 +288,8 @@ class BASE_EXPORT DictionaryValue : public Value {
   bool GetStringASCII(const std::string& path, std::string* out_value) const;
   bool GetBinary(const std::string& path, const BinaryValue** out_value) const;
   bool GetBinary(const std::string& path, BinaryValue** out_value);
-  bool GetDictionary(const std::string& path,
-                     const DictionaryValue** out_value) const;
-  bool GetDictionary(const std::string& path, DictionaryValue** out_value);
+  bool GetDictionary(StringPiece path, const DictionaryValue** out_value) const;
+  bool GetDictionary(StringPiece path, DictionaryValue** out_value);
   bool GetList(const std::string& path, const ListValue** out_value) const;
   bool GetList(const std::string& path, ListValue** out_value);