predictors: Highlight prefetchable resources in webui.

chrome/browser/predictors/resource_prefetch_predictor.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.h"
 
 #include <map>
 #include <set>
 #include <utility>
 
@@ skipping 623 matching lines @@
 }
 
 bool ResourcePrefetchPredictor::IsUrlPrefetchable(const GURL& main_frame_url) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (initialization_state_ != INITIALIZED)
     return false;
 
   return GetPrefetchData(main_frame_url, nullptr);
 }
 
+bool ResourcePrefetchPredictor::IsResourcePrefetchable(
+    const ResourceData& resource) const {
+  float confidence = static_cast<float>(resource.number_of_hits()) /
+                     (resource.number_of_hits() + resource.number_of_misses());
+  return confidence >= config_.min_resource_confidence_to_trigger_prefetch &&
+         resource.number_of_hits() >=
+             config_.min_resource_hits_to_trigger_prefetch;
+}
+
 void ResourcePrefetchPredictor::SetObserverForTesting(TestObserver* observer) {
   observer_ = observer;
 }
 
 void ResourcePrefetchPredictor::Shutdown() {
   if (prefetch_manager_.get()) {
     prefetch_manager_->ShutdownOnUIThread();
     prefetch_manager_ = NULL;
   }
   history_service_observer_.RemoveAll();
@@ skipping 659 matching lines @@
     const RedirectData& url_redirect_data =
         is_host ? empty_redirect_data : data;
     BrowserThread::PostTask(
         BrowserThread::DB, FROM_HERE,
         base::Bind(&ResourcePrefetchPredictorTables::UpdateData, tables_,
                    empty_data, empty_data, url_redirect_data,
                    host_redirect_data));
   }
 }
 
-bool ResourcePrefetchPredictor::IsResourcePrefetchable(
-    const ResourceData& resource) const {
-  float confidence = static_cast<float>(resource.number_of_hits()) /
-                     (resource.number_of_hits() + resource.number_of_misses());
-  return confidence >= config_.min_resource_confidence_to_trigger_prefetch &&
-         resource.number_of_hits() >=
-             config_.min_resource_hits_to_trigger_prefetch;
-}
-
 void ResourcePrefetchPredictor::ReportDatabaseReadiness(
     const history::TopHostsList& top_hosts) const {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (top_hosts.size() == 0)
     return;
 
   size_t count_in_cache = 0;
   size_t total_visits = 0;
   for (const std::pair<std::string, int>& top_host : top_hosts) {
     const std::string& host = top_host.first;
@@ skipping 67 matching lines @@
 TestObserver::~TestObserver() {
   predictor_->SetObserverForTesting(nullptr);
 }
 
 TestObserver::TestObserver(ResourcePrefetchPredictor* predictor)
     : predictor_(predictor) {
   predictor_->SetObserverForTesting(this);
 }
 
 }  // namespace predictors