Utilize ProfileInfoCache to support data type counts in profile deletion flow

chrome/browser/profiles/profile_info_cache.h

Index: chrome/browser/profiles/profile_info_cache.h
diff --git a/chrome/browser/profiles/profile_info_cache.h b/chrome/browser/profiles/profile_info_cache.h
index fb990428d79d329827306ccd3da4050f6514c185..ca49c54c02dda51b8969bb125e8d37620695222c 100644
--- a/chrome/browser/profiles/profile_info_cache.h
+++ b/chrome/browser/profiles/profile_info_cache.h
@@ -105,6 +105,13 @@ class ProfileInfoCache : public ProfileInfoInterface,
 
   size_t GetAvatarIconIndexOfProfileAtIndex(size_t index) const;
 
+  int GetStatisticOfProfileAtIndex(size_t index, const std::string& category)
+      const;
+  std::map<std::string, int> GetAllStatisticsOfProfileAtIndex(size_t index)
+      const;
+  scoped_ptr<base::DictionaryValue>
+      GetAllStatisticsOfProfileAtIndexAsDictionaryValue(size_t index) const;
+
   void SetProfileActiveTimeAtIndex(size_t index);
   // Warning: This will re-sort profiles and thus may change indices!
   void SetNameOfProfileAtIndex(size_t index, const base::string16& name);
@@ -146,6 +153,9 @@ class ProfileInfoCache : public ProfileInfoInterface,
   // set of default icons.
   size_t ChooseAvatarIconIndexForNewProfile() const;
 
+  void SetStatisticOfProfileAtIndex(size_t index, const std::string& category,
+                                    int value);
+
   const base::FilePath& GetUserDataDir() const;
 
   // Register cache related preferences in Local State.