[Doodle] Move parsing from fetcher into the types themselves

components/doodle/doodle_types.h

Index: components/doodle/doodle_types.h
diff --git a/components/doodle/doodle_types.h b/components/doodle/doodle_types.h
index d97b50bd0fb0b05e90ad8e16fbbdaae4fc746b9c..058aa10d9a3c13fdb9e05b784af9ffbdb04b27a0 100644
--- a/components/doodle/doodle_types.h
+++ b/components/doodle/doodle_types.h
@@ -5,8 +5,13 @@
 #ifndef COMPONENTS_DOODLE_DOODLE_TYPES_H_
 #define COMPONENTS_DOODLE_DOODLE_TYPES_H_
 
+#include "base/optional.h"
 #include "url/gurl.h"
 
+namespace base {
+class DictionaryValue;
+}
+
 namespace doodle {
 
 enum class DoodleState {
@@ -32,6 +37,10 @@ struct DoodleImage {
   DoodleImage();
   ~DoodleImage();
 
+  static base::Optional<DoodleImage> FromDictionary(
+      const base::DictionaryValue& dict,
+      const base::Optional<GURL>& base_url);
+
   bool operator==(const DoodleImage& other) const;
   bool operator!=(const DoodleImage& other) const;
 
@@ -51,6 +60,10 @@ struct DoodleConfig {
   DoodleConfig(const DoodleConfig& config);  // = default;
   ~DoodleConfig();
 
+  static base::Optional<DoodleConfig> FromDictionary(
+      const base::DictionaryValue& dict,
+      const base::Optional<GURL>& base_url);
+
   bool operator==(const DoodleConfig& other) const;
   bool operator!=(const DoodleConfig& other) const;