Add WARN_UNUSED_RESULT to DictionaryValue::GetXYZWithoutPathExpansion

base/values.h

Index: base/values.h
diff --git a/base/values.h b/base/values.h
index bffdbc7d37eb2e38a87608518bda37d2b4726dbe..6baf7abce75d0c4dbc5fad9375e633f8295ed570 100644
--- a/base/values.h
+++ b/base/values.h
@@ -288,28 +288,38 @@ class BASE_EXPORT DictionaryValue : public Value {
 
   // Like Get(), but without special treatment of '.'.  This allows e.g. URLs to
   // be used as paths.
-  bool GetWithoutPathExpansion(const std::string& key,
-                               const Value** out_value) const;
-  bool GetWithoutPathExpansion(const std::string& key, Value** out_value);
-  bool GetBooleanWithoutPathExpansion(const std::string& key,
-                                      bool* out_value) const;
-  bool GetIntegerWithoutPathExpansion(const std::string& key,
-                                      int* out_value) const;
-  bool GetDoubleWithoutPathExpansion(const std::string& key,
-                                     double* out_value) const;
-  bool GetStringWithoutPathExpansion(const std::string& key,
-                                     std::string* out_value) const;
-  bool GetStringWithoutPathExpansion(const std::string& key,
-                                     string16* out_value) const;
+  bool GetWithoutPathExpansion(
+      const std::string& key,
+      const Value** out_value) const WARN_UNUSED_RESULT;
+  bool GetWithoutPathExpansion(
+      const std::string& key, Value** out_value) WARN_UNUSED_RESULT;
+  bool GetBooleanWithoutPathExpansion(
+      const std::string& key,
+      bool* out_value) const WARN_UNUSED_RESULT;
+  bool GetIntegerWithoutPathExpansion(
+      const std::string& key,
+      int* out_value) const WARN_UNUSED_RESULT;
+  bool GetDoubleWithoutPathExpansion(
+      const std::string& key,
+      double* out_value) const WARN_UNUSED_RESULT;
+  bool GetStringWithoutPathExpansion(
+      const std::string& key,
+      std::string* out_value) const WARN_UNUSED_RESULT;
+  bool GetStringWithoutPathExpansion(
+      const std::string& key,
+      string16* out_value) const WARN_UNUSED_RESULT;
+  bool GetDictionaryWithoutPathExpansion(
+      const std::string& key,
+      const DictionaryValue** out_value) const WARN_UNUSED_RESULT;
   bool GetDictionaryWithoutPathExpansion(
       const std::string& key,
-      const DictionaryValue** out_value) const;
-  bool GetDictionaryWithoutPathExpansion(const std::string& key,
-                                         DictionaryValue** out_value);
-  bool GetListWithoutPathExpansion(const std::string& key,
-                                   const ListValue** out_value) const;
-  bool GetListWithoutPathExpansion(const std::string& key,
-                                   ListValue** out_value);
+      DictionaryValue** out_value) WARN_UNUSED_RESULT;
+  bool GetListWithoutPathExpansion(
+      const std::string& key,
+      const ListValue** out_value) const WARN_UNUSED_RESULT;
+  bool GetListWithoutPathExpansion(
+      const std::string& key,
+      ListValue** out_value) WARN_UNUSED_RESULT;
 
   // Removes the Value with the specified path from this dictionary (or one
   // of its child dictionaries, if the path is more than just a local key).