Log correct metrics if there is info in host cache and no store

This was potentially falling back to hint still being fetched if URL
hint hadn't arrived yet

Bug: 1112500
Change-Id: I0307f41f1b49a6901eef48b522dfefe0546f6139
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2369264Reviewed-by: Michael Crouse <mcrouse@chromium.org>
Commit-Queue: Sophie Chang <sophiechang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800752}

chrome/browser/optimization_guide/optimization_guide_hints_manager.cc

@@ -1132,13 +1132,16 @@ OptimizationGuideHintsManager::CanApplyOptimization(
   const optimization_guide::proto::Hint* loaded_hint =
       hint_cache_->GetHostKeyedHintIfLoaded(host);
   if (!loaded_hint) {
-    // If we do not have a hint already loaded and we do not have one in the
-    // cache, we do not know what to do with the URL so just return.
-    // Otherwise, we do have information, but we just do not know it yet.
-    if (optimization_guide::features::ShouldPersistHintsToDisk() &&
-        hint_cache_->HasHint(host)) {
-      return optimization_guide::OptimizationTypeDecision::
-          kHadHintButNotLoadedInTime;
+    if (hint_cache_->HasHint(host)) {
+      // If we do not have a hint already loaded and we do not have one in the
+      // cache, we do not know what to do with the URL so just return.
+      // Otherwise, we do have information, but we just do not know it yet.
+      if (optimization_guide::features::ShouldPersistHintsToDisk()) {
+        return optimization_guide::OptimizationTypeDecision::
+            kHadHintButNotLoadedInTime;
+      } else {
+        return optimization_guide::OptimizationTypeDecision::kNoHintAvailable;
+      }
     }
 
     if (IsHintBeingFetchedForNavigation(navigation_url)) {