Add a way to send the resource percentage signal to the RC.

chrome/browser/android/offline_pages/prerendering_offliner.h

 // Copyright 2016 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 CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_
 
 #include <memory>
 
 #include "base/android/application_status_listener.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/android/offline_pages/prerendering_loader.h"
 #include "components/offline_pages/core/background/offliner.h"
+#include "components/offline_pages/core/background/resource_data_type.h"
 #include "components/offline_pages/core/offline_page_model.h"
 #include "components/offline_pages/core/offline_page_types.h"
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }  // namespace content
 
 namespace offline_pages {
 
 class OfflinerPolicy;
 
 // An Offliner implementation that attempts client-side rendering and saving
 // of an offline page. It uses the PrerenderingLoader to load the page and
 // the OfflinePageModel to save it. Only one request may be active at a time.
 class PrerenderingOffliner : public Offliner {
  public:
   PrerenderingOffliner(content::BrowserContext* browser_context,
                        const OfflinerPolicy* policy,
                        OfflinePageModel* offline_page_model);
   ~PrerenderingOffliner() override;
 
   // Offliner implementation.
   bool LoadAndSave(const SavePageRequest& request,
                    const CompletionCallback& completion_callback,
                    const ProgressCallback& progress_callback) override;
   bool Cancel(const CancelCallback& callback) override;
   bool HandleTimeout(int64_t request_id) override;
+  void ObserveResourceTracking(const ResourceDataType type,
+                               int64_t started_count,
+                               int64_t completed_count) override;
 
   // Allows a loader to be injected for testing. This may only be done once
   // and must be called before any of the Offliner interface methods are called.
   void SetLoaderForTesting(std::unique_ptr<PrerenderingLoader> loader);
 
   void SetLowEndDeviceForTesting(bool is_low_end_device);
 
   void SetApplicationStateForTesting(
       base::android::ApplicationState application_state);
 
@@ skipping 49 matching lines @@
   // ApplicationStatusListener to monitor if the Chrome moves to the foreground.
   std::unique_ptr<base::android::ApplicationStatusListener> app_listener_;
   base::WeakPtrFactory<PrerenderingOffliner> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderingOffliner);
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_