NTP: Extract JSON requests from Fetcher.

components/ntp_snippets/remote/remote_suggestions_provider.h

Index: components/ntp_snippets/remote/remote_suggestions_provider.h
diff --git a/components/ntp_snippets/remote/remote_suggestions_provider.h b/components/ntp_snippets/remote/remote_suggestions_provider.h
index 1c39bb8b8c8972a48d2b82db23751c7c0c9a92bc..4142a5ae4b81f83a205d3f4b26afba60799f67cf 100644
--- a/components/ntp_snippets/remote/remote_suggestions_provider.h
+++ b/components/ntp_snippets/remote/remote_suggestions_provider.h
@@ -45,6 +45,7 @@ class ImageFetcher;
 
 namespace ntp_snippets {
 
+struct NTPSnippetsRequestParams;

[tschumann, 2016/12/16 16:36:20]

no need to distinguish struct vs class in forward declarations. (at least IMO).

[fhorschig, 2016/12/20 10:07:38]

Done.

 class RemoteSuggestionsDatabase;
 class UserClassifier;
 
@@ -393,7 +394,7 @@ class RemoteSuggestionsProvider final : public ContentSuggestionsProvider {
   void RestoreCategoriesFromPrefs();
   void StoreCategoriesToPrefs();
 
-  NTPSnippetsFetcher::Params BuildFetchParams() const;
+  NTPSnippetsRequestParams BuildFetchParams() const;
 
   void MarkEmptyCategoriesAsLoading();