Adding a request counter to the snippets fetcher.

components/ntp_snippets/ntp_snippets_service.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SERVICE_H_
 #define COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SERVICE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 82 matching lines @@
   // Returns whether the service is ready. While this is false, the list of
   // snippets will be empty, and all modifications to it (fetch, discard, etc)
   // will be ignored.
   bool ready() const { return state_ == State::READY; }
 
   // Returns whether the service is initialized. While this is false, some
   // calls may trigger DCHECKs.
   bool initialized() const { return ready() || state_ == State::DISABLED; }
 
   // Fetches snippets from the server and adds them to the current ones.
-  void FetchSnippets();
+  // Requests can be marked more important by setting |force_request| to true
+  // (such request might circumvent the daily quota for requests, etc.) Useful
+  // for requests triggered by the user.
+  void FetchSnippets(bool force_request);
+
   // Fetches snippets from the server for specified hosts (overriding
   // suggestions from the suggestion service) and adds them to the current ones.
   // Only called from chrome://snippets-internals, DO NOT USE otherwise!
   // Ignored while |loaded()| is false.
-  void FetchSnippetsFromHosts(const std::set<std::string>& hosts);
+  void FetchSnippetsFromHosts(const std::set<std::string>& hosts,
+                              bool force_request);
 
   // Available snippets.
   const NTPSnippet::PtrVector& snippets() const { return snippets_; }
 
   // Returns the list of snippets previously discarded by the user (that are
   // not expired yet).
   const NTPSnippet::PtrVector& discarded_snippets() const {
     return discarded_snippets_;
   }
 
@@ skipping 215 matching lines @@
   // If the service might be enabled, DisabledReason::NONE will be provided.
   virtual void NTPSnippetsServiceDisabledReasonChanged(DisabledReason) = 0;
 
  protected:
   virtual ~NTPSnippetsServiceObserver() {}
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SERVICE_H_