predictors: Fix duplicate content type detection.

chrome/browser/predictors/resource_prefetcher_unittest.cc

Index: chrome/browser/predictors/resource_prefetcher_unittest.cc
diff --git a/chrome/browser/predictors/resource_prefetcher_unittest.cc b/chrome/browser/predictors/resource_prefetcher_unittest.cc
index e97d8e61f1e18c5bf66f8f57f48e4326eb193f1e..e1576e2a52bf5e73878be44974724f0cf29d2a92 100644
--- a/chrome/browser/predictors/resource_prefetcher_unittest.cc
+++ b/chrome/browser/predictors/resource_prefetcher_unittest.cc
@@ -189,10 +189,7 @@ TEST_F(ResourcePrefetcherTest, TestPrefetcherFinishes) {
   requests->push_back(new ResourcePrefetcher::Request(GURL(
       "http://yahoo.com/resource5.png")));
 
-  NavigationID navigation_id;
-  navigation_id.render_process_id = 1;
-  navigation_id.render_frame_id = 2;
-  navigation_id.main_frame_url = GURL("http://www.google.com");
+  NavigationID navigation_id(1, 2, GURL("http://www.google.com"));
 
   // Needed later for comparison.
   ResourcePrefetcher::RequestVector* requests_ptr = requests.get();
@@ -310,10 +307,7 @@ TEST_F(ResourcePrefetcherTest, TestPrefetcherStopped) {
   requests->push_back(new ResourcePrefetcher::Request(GURL(
       "http://m.google.com/resource1.jpg")));
 
-  NavigationID navigation_id;
-  navigation_id.render_process_id = 1;
-  navigation_id.render_frame_id = 2;
-  navigation_id.main_frame_url = GURL("http://www.google.com");
+  NavigationID navigation_id(1, 2, GURL("http://www.google.com"));
 
   // Needed later for comparison.
   ResourcePrefetcher::RequestVector* requests_ptr = requests.get();