predictors: Introduce GlowplugPredictor.

chrome/browser/predictors/resource_prefetch_predictor_tab_helper.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/predictors/resource_prefetch_predictor_tab_helper.h"
 
-#include "chrome/browser/predictors/resource_prefetch_predictor.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
+#include <string>
+
+#include "chrome/browser/predictors/loading_predictor.h"
+#include "chrome/browser/predictors/loading_predictor_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(
     predictors::ResourcePrefetchPredictorTabHelper);
 
 using content::BrowserThread;
 
 namespace predictors {
 
 ResourcePrefetchPredictorTabHelper::ResourcePrefetchPredictorTabHelper(
     content::WebContents* web_contents)
     : content::WebContentsObserver(web_contents) {
 }
 
 ResourcePrefetchPredictorTabHelper::~ResourcePrefetchPredictorTabHelper() {
 }
 
 void ResourcePrefetchPredictorTabHelper::DocumentOnLoadCompletedInMainFrame() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  ResourcePrefetchPredictor* predictor =
-      ResourcePrefetchPredictorFactory::GetForProfile(
-          web_contents()->GetBrowserContext());
-  if (!predictor)
+  auto* loading_predictor = LoadingPredictorFactory::GetForProfile(
+      Profile::FromBrowserContext(web_contents()->GetBrowserContext()));
+  if (!loading_predictor)
     return;
 
+  auto* resource_prefetch_predictor =
+      loading_predictor->resource_prefetch_predictor();
   NavigationID navigation_id(web_contents());
-  predictor->RecordMainFrameLoadComplete(navigation_id);
+  resource_prefetch_predictor->RecordMainFrameLoadComplete(navigation_id);
 }
 
 void ResourcePrefetchPredictorTabHelper::DidLoadResourceFromMemoryCache(
     const GURL& url,
     const std::string& mime_type,
     content::ResourceType resource_type) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  ResourcePrefetchPredictor* predictor =
-      ResourcePrefetchPredictorFactory::GetForProfile(
-          web_contents()->GetBrowserContext());
-  if (!predictor)
+  auto* loading_predictor = LoadingPredictorFactory::GetForProfile(
+      Profile::FromBrowserContext(web_contents()->GetBrowserContext()));
+  if (!loading_predictor)
     return;
 
   ResourcePrefetchPredictor::URLRequestSummary summary;
   summary.navigation_id = NavigationID(web_contents());
   summary.resource_url = url;
   summary.mime_type = mime_type;
   summary.resource_type =
       ResourcePrefetchPredictor::GetResourceTypeFromMimeType(
           mime_type, resource_type);
   summary.was_cached = true;
-  predictor->RecordURLResponse(summary);
+  auto* resource_prefetch_predictor =
+      loading_predictor->resource_prefetch_predictor();
+  resource_prefetch_predictor->RecordURLResponse(summary);
 }
 
 }  // namespace predictors