Introduce a parse for digital asset links.

components/password_manager/core/browser/site_affiliation/asset_link_retriever.h

Index: components/password_manager/core/browser/site_affiliation/asset_link_retriever.h
diff --git a/components/password_manager/core/browser/site_affiliation/asset_link_retriever.h b/components/password_manager/core/browser/site_affiliation/asset_link_retriever.h
index 42ae1a121ce0f1cdbdbd6480cc298e5a7fb6989f..2beecdf7377af89f7b88f662227c6552f93b66f0 100644
--- a/components/password_manager/core/browser/site_affiliation/asset_link_retriever.h
+++ b/components/password_manager/core/browser/site_affiliation/asset_link_retriever.h
@@ -9,6 +9,7 @@
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "components/password_manager/core/browser/site_affiliation/asset_link_data.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "url/gurl.h"
 
@@ -29,6 +30,7 @@ class AssetLinkRetriever : public base::RefCounted<AssetLinkRetriever>,
   enum class State {
     INACTIVE,
     NETWORK_REQUEST,
+    PARSING,
     FINISHED,
   };
 
@@ -42,6 +44,9 @@ class AssetLinkRetriever : public base::RefCounted<AssetLinkRetriever>,
 
   bool error() const { return error_; }
 
+  const std::vector<GURL>& includes() const { return data_.includes(); }
+  const std::vector<GURL>& targets() const { return data_.targets(); }
+
  private:
   friend class base::RefCounted<AssetLinkRetriever>;
   ~AssetLinkRetriever() override;
@@ -49,6 +54,8 @@ class AssetLinkRetriever : public base::RefCounted<AssetLinkRetriever>,
   // net::URLFetcherDelegate:
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
+  void OnResponseParsed(std::unique_ptr<AssetLinkData> data, bool result);
+
   // URL of the file retrieved.
   const GURL url_;
 
@@ -58,6 +65,9 @@ class AssetLinkRetriever : public base::RefCounted<AssetLinkRetriever>,
   // Whether the reading finished with error.
   bool error_;
 
+  // Actual data from the asset link.
+  AssetLinkData data_;
+
   std::unique_ptr<net::URLFetcher> fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(AssetLinkRetriever);