predictors: Fix duplicate content type detection.

chrome/browser/predictors/resource_prefetch_predictor_unittest.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 <iostream>
 #include <memory>
 
 #include "base/memory/ref_counted.h"
@@ skipping 78 matching lines @@
             0,
             base::Time::Now(),
             false,
             history::SOURCE_BROWSED);
     profile_->BlockUntilHistoryProcessesPendingRequests();
   }
 
   NavigationID CreateNavigationID(int process_id,
                                   int render_frame_id,
                                   const std::string& main_frame_url) {
-    NavigationID navigation_id;
-    navigation_id.render_process_id = process_id;
-    navigation_id.render_frame_id = render_frame_id;
-    navigation_id.main_frame_url = GURL(main_frame_url);
+    NavigationID navigation_id(process_id, render_frame_id,
+                               GURL(main_frame_url));
     navigation_id.creation_time = base::TimeTicks::Now();
     return navigation_id;
   }
 
   ResourcePrefetchPredictor::URLRequestSummary CreateURLRequestSummary(
       int process_id,
       int render_frame_id,
       const std::string& main_frame_url,
       const std::string& resource_url,
       content::ResourceType resource_type,
@@ skipping 664 matching lines @@
       content::RESOURCE_TYPE_PREFETCH, "bogus/mime-type"));
   EXPECT_FALSE(ResourcePrefetchPredictor::IsHandledResourceType(
       content::RESOURCE_TYPE_PREFETCH, ""));
   EXPECT_TRUE(ResourcePrefetchPredictor::IsHandledResourceType(
       content::RESOURCE_TYPE_PREFETCH, "application/font-woff"));
   EXPECT_TRUE(ResourcePrefetchPredictor::IsHandledResourceType(
       content::RESOURCE_TYPE_PREFETCH, "font/woff2"));
 }
 
 }  // namespace predictors