predictors: Make the resource_prefetch_predictor accessible from Java.

chrome/browser/predictors/resource_prefetcher_manager.h

Index: chrome/browser/predictors/resource_prefetcher_manager.h
diff --git a/chrome/browser/predictors/resource_prefetcher_manager.h b/chrome/browser/predictors/resource_prefetcher_manager.h
index 73d3913329ca8d2af1659b774eba440cb4812c79..10bf889a491797fc57d5309f2ed5fbbc046f8129 100644
--- a/chrome/browser/predictors/resource_prefetcher_manager.h
+++ b/chrome/browser/predictors/resource_prefetcher_manager.h
@@ -7,6 +7,8 @@
 
 #include <map>
 #include <memory>
+#include <string>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ -44,14 +46,14 @@ class ResourcePrefetcherManager
   // The prefetchers need to be deleted on the IO thread.
   void ShutdownOnIOThread();
 
-  // Will create a new ResourcePrefetcher for the main frame url of the input
-  // navigation if there isn't one already for the same host.
-  void MaybeAddPrefetch(const NavigationID& navigation_id,
+  // Will create a new ResourcePrefetcher for a given main frame url if there
+  // isn't one already for the same host.
+  void MaybeAddPrefetch(const GURL& main_frame_url,
                         const std::vector<GURL>& urls);
 
-  // Stops the ResourcePrefetcher for the input navigation, if one was in
+  // Stops the ResourcePrefetcher for a given main frame URL, if one was in
   // progress.
-  void MaybeRemovePrefetch(const NavigationID& navigation_id);
+  void MaybeRemovePrefetch(const GURL& main_frame_url);
 
   // ResourcePrefetcher::Delegate methods.
   void ResourcePrefetcherFinished(ResourcePrefetcher* prefetcher) override;