predictors: Add Manifest table to ResourcePrefetchPredictor.

chrome/browser/predictors/resource_prefetch_predictor_test_util.h

Index: chrome/browser/predictors/resource_prefetch_predictor_test_util.h
diff --git a/chrome/browser/predictors/resource_prefetch_predictor_test_util.h b/chrome/browser/predictors/resource_prefetch_predictor_test_util.h
index 4f12990c2dfc673b32225ab8cb6ccac3e4097ec7..eacc6697b94f6ff7c124e17d9e762f8429f84d4c 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_test_util.h
+++ b/chrome/browser/predictors/resource_prefetch_predictor_test_util.h
@@ -30,6 +30,10 @@ void InitializeRedirectStat(RedirectStat* redirect,
                             int number_of_misses,
                             int consecutive_misses);
 
+void InitializePrecacheResource(precache::PrecacheResource* resource,
+                                const std::string& url,
+                                double weight_ratio);
+
 PrefetchData CreatePrefetchData(const std::string& primary_key,
                                 uint64_t last_visit_time = 0);
 RedirectData CreateRedirectData(const std::string& primary_key,
@@ -80,4 +84,16 @@ bool operator==(const ResourcePrefetchPredictor::URLRequestSummary& lhs,
 
 }  // namespace predictors
 
+namespace precache {
+
+std::ostream& operator<<(std::ostream& stream,
+                         const PrecacheManifest& manifest);
+std::ostream& operator<<(std::ostream& stream,
+                         const PrecacheResource& resource);
+
+bool operator==(const PrecacheManifest& lhs, const PrecacheManifest& rhs);
+bool operator==(const PrecacheResource& lhs, const PrecacheResource& rhs);
+
+}  // namespace precache
+
 #endif  // CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_TEST_UTIL_H_