sources: factor out Source::URL::TwitPic.

app/logical/sources/strategies/twit_pic.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+# @see Source::URL::TwitPic
+module Sources::Strategies
+  class TwitPic < Base
+    def match?
+      parsed_url&.site_name == "TwitPic"
+    end
+
+    def site_name
+      parsed_url.site_name
+    end
+
+    def normalize_for_source
+      parsed_url.page_url || url
+    end
+  end
+end