NTP: Extract JSON requests from Fetcher.

components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc

Index: components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc
diff --git a/components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc b/components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc
index 2ad2080a3c4ee90076fabf9980fd8b1616a2dd3e..0d876fb7364fe91f8ffb2791b1d39d0fdc46cc18 100644
--- a/components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc
+++ b/components/ntp_snippets/remote/remote_suggestions_provider_unittest.cc
@@ -280,10 +280,9 @@ gfx::Image FetchImage(RemoteSuggestionsProvider* service,
   return result;
 }
 
-void ParseJson(
-    const std::string& json,
-    const ntp_snippets::NTPSnippetsFetcher::SuccessCallback& success_callback,
-    const ntp_snippets::NTPSnippetsFetcher::ErrorCallback& error_callback) {
+void ParseJson(const std::string& json,
+               const SuccessCallback& success_callback,
+               const ErrorCallback& error_callback) {
   base::JSONReader json_reader;
   std::unique_ptr<base::Value> value = json_reader.ReadToValue(json);
   if (value) {
@@ -457,8 +456,7 @@ class RemoteSuggestionsProviderTest : public ::testing::Test {
     return base::MakeUnique<RemoteSuggestionsProvider>(
         observer_.get(), &category_factory_, utils_.pref_service(), "fr",
         &user_classifier_, &scheduler_, std::move(snippets_fetcher),
-        std::move(image_fetcher), std::move(image_decoder),
-        std::move(database),
+        std::move(image_fetcher), std::move(image_decoder), std::move(database),
         base::MakeUnique<RemoteSuggestionsStatusService>(
             utils_.fake_signin_manager(), utils_.pref_service()));
   }