predictors: Make ResourcePrefetchPredictor observable.

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 daa3bd397f27125b1c077832b9c904dca48b441e..211d9736a535166a2c0eaf0a58d9c3d140ccea77 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_test_util.h
+++ b/chrome/browser/predictors/resource_prefetch_predictor_test_util.h
@@ -6,6 +6,7 @@
 
 #include <string>
 
+#include "chrome/browser/predictors/resource_prefetch_predictor.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor_tables.h"
 
 namespace predictors {
@@ -37,11 +38,22 @@ std::ostream& operator<<(std::ostream& stream, const PrefetchData& data);
 std::ostream& operator<<(std::ostream& stream, const ResourceData& resource);
 std::ostream& operator<<(std::ostream& stream, const RedirectData& data);
 std::ostream& operator<<(std::ostream& stream, const RedirectStat& redirect);
+std::ostream& operator<<(
+    std::ostream& stream,
+    const ResourcePrefetchPredictor::PageRequestSummary& summary);
+std::ostream& operator<<(
+    std::ostream& stream,
+    const ResourcePrefetchPredictor::URLRequestSummary& summary);
+std::ostream& operator<<(std::ostream& stream, const NavigationID& id);
 
 bool operator==(const PrefetchData& lhs, const PrefetchData& rhs);
 bool operator==(const ResourceData& lhs, const ResourceData& rhs);
 bool operator==(const RedirectData& lhs, const RedirectData& rhs);
 bool operator==(const RedirectStat& lhs, const RedirectStat& rhs);
+bool operator==(const ResourcePrefetchPredictor::PageRequestSummary& lhs,
+                const ResourcePrefetchPredictor::PageRequestSummary& rhs);
+bool operator==(const ResourcePrefetchPredictor::URLRequestSummary& lhs,
+                const ResourcePrefetchPredictor::URLRequestSummary& rhs);
 
 }  // namespace predictors