Add access count and time-since-accessed histograms to temp storage eviction.

storage/browser/quota/quota_database.h

Index: storage/browser/quota/quota_database.h
diff --git a/storage/browser/quota/quota_database.h b/storage/browser/quota/quota_database.h
index 09e90b34bfeb4e28157144fae2dc5999f2240605..d8216fd9630bb24dec2c65d2d40e232c39366f41 100644
--- a/storage/browser/quota/quota_database.h
+++ b/storage/browser/quota/quota_database.h
@@ -36,6 +36,20 @@ class SpecialStoragePolicy;
 // All the methods of this class must run on the DB thread.
 class STORAGE_EXPORT_PRIVATE QuotaDatabase {
  public:
+  struct STORAGE_EXPORT_PRIVATE OriginInfoTableEntry {
+    OriginInfoTableEntry();
+    OriginInfoTableEntry(const GURL& origin,
+                         StorageType type,
+                         int used_count,
+                         const base::Time& last_access_time,
+                         const base::Time& last_modified_time);
+    GURL origin;
+    StorageType type;
+    int used_count;
+    base::Time last_access_time;
+    base::Time last_modified_time;
+  };
+
   // Constants for {Get,Set}QuotaConfigValue keys.
   static const char kDesiredAvailableSpaceKey[];
   static const char kTemporaryQuotaOverrideKey[];
@@ -71,6 +85,9 @@ class STORAGE_EXPORT_PRIVATE QuotaDatabase {
   // the database schema reset.
   bool RegisterInitialOriginInfo(
       const std::set<GURL>& origins, StorageType type);
+  bool GetOriginInfo(const GURL& origin,
+                     StorageType type,
+                     OriginInfoTableEntry* entry);
 
   bool DeleteOriginInfo(const GURL& origin, StorageType type);
 
@@ -111,21 +128,6 @@ class STORAGE_EXPORT_PRIVATE QuotaDatabase {
   };
   friend STORAGE_EXPORT_PRIVATE bool operator <(
       const QuotaTableEntry& lhs, const QuotaTableEntry& rhs);
-
-  struct STORAGE_EXPORT_PRIVATE OriginInfoTableEntry {
-    OriginInfoTableEntry();
-    OriginInfoTableEntry(
-        const GURL& origin,
-        StorageType type,
-        int used_count,
-        const base::Time& last_access_time,
-        const base::Time& last_modified_time);
-    GURL origin;
-    StorageType type;
-    int used_count;
-    base::Time last_access_time;
-    base::Time last_modified_time;
-  };
   friend STORAGE_EXPORT_PRIVATE bool operator <(
       const OriginInfoTableEntry& lhs, const OriginInfoTableEntry& rhs);