Revert 152162 - Change HistoryAndBookmarkRow favicon_ field to be scoped_refptr<base::RefCountedMem…

chrome/browser/history/android/android_history_types.h

Index: chrome/browser/history/android/android_history_types.h
===================================================================
--- chrome/browser/history/android/android_history_types.h	(revision 152168)
+++ chrome/browser/history/android/android_history_types.h	(working copy)
@@ -117,18 +117,14 @@
   }
 
   // The favicon related to page if any.
-  void set_favicon(const scoped_refptr<base::RefCountedMemory>& data) {
+  void set_favicon(const std::vector<unsigned char>& data) {
     set_value_explicitly(FAVICON);
     favicon_ = data;
   }
-  const scoped_refptr<base::RefCountedMemory>& favicon() const {
+  const std::vector<unsigned char>& favicon() const {
     return favicon_;
   }
 
-  bool favicon_valid() const {
-    return favicon_.get() && favicon_->size();
-  }
-
   // The id of android url.
   void set_id(AndroidURLID id) {
     set_value_explicitly(ID);
@@ -172,7 +168,7 @@
   string16 title_;
   base::Time created_;
   base::Time last_visit_time_;
-  scoped_refptr<base::RefCountedMemory> favicon_;
+  std::vector<unsigned char> favicon_;
   int visit_count_;
   bool is_bookmark_;
   int64 parent_id_;