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

chrome/browser/android/offline_pages/prerendering_loader.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_LOADER_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_LOADER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/values.h"
 #include "chrome/browser/android/offline_pages/prerender_adapter.h"
 #include "components/offline_pages/core/background/offliner.h"
+#include "components/offline_pages/core/background/resource_data_type.h"
 #include "components/offline_pages/core/snapshot_controller.h"
 
 class GURL;
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }  // namespace content
 
 namespace offline_pages {
@@ skipping 52 matching lines @@
   void OnPrerenderDomContentLoaded() override;
   void OnPrerenderStop() override;
   void OnPrerenderNetworkBytesChanged(int64_t bytes) override;
 
   // SnapshotController::Client implementation:
   void StartSnapshot() override;
 
   // Returns true if the lowbar of snapshotting a page is met.
   virtual bool IsLowbarMet();
 
+  void ObserveResourceTracking(const ResourceDataType type,
+                               int64_t started_count,
+                               int64_t completed_count);
+
   // Returns a JSON dictionary value for analysis of loading progress.
   const base::DictionaryValue& GetLoadingSignalData() { return signal_data_; }
 
  private:
   // State of the loader (only one request may be active at a time).
   enum class State {
     IDLE,     // No active load request.
     PENDING,  // Load request is pending the start of prerendering.
     LOADING,  // Loading in progress.
     LOADED,   // Loaded and now waiting for requestor to StopLoading().
@@ skipping 11 matching lines @@
 
   // Cancels any current prerender and moves loader to idle state.
   void CancelPrerender();
 
   // Mark the time when we started loading the page.
   void MarkLoadStartTime();
 
   // Add a signal to the signal data.
   void AddLoadingSignal(const char* signal_name);
 
+  // Add resource percentage based signal to the signal data.
+  void AddResourceSignal(const ResourceDataType type,
+                         int64_t started_count,
+                         int64_t completed_count);
+
   // Tracks loading state including whether the Loader is idle.
   State state_;
 
   // Handles determining when to report page is LOADED.
   std::unique_ptr<SnapshotController> snapshot_controller_;
 
   // Not owned.
   content::BrowserContext* browser_context_;
 
   // Adapter for handling calls to the prerender stack.
@@ skipping 18 matching lines @@
 
   // Time in ticks of when we start loading the page.
   base::TimeTicks load_start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderingLoader);
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_LOADER_H_