Newly created profiles should have the grey silhouette as avatar.

chrome/browser/profiles/profile_info_cache.cc

Index: chrome/browser/profiles/profile_info_cache.cc
diff --git a/chrome/browser/profiles/profile_info_cache.cc b/chrome/browser/profiles/profile_info_cache.cc
index ad18abe4190ab86864b0db9b4679f9149521fdab..8220ede2a3654c6381734f33fad9805a922e25d7 100644
--- a/chrome/browser/profiles/profile_info_cache.cc
+++ b/chrome/browser/profiles/profile_info_cache.cc
@@ -76,7 +76,8 @@ const int kDefaultNames[] = {
   IDS_DEFAULT_AVATAR_NAME_22,
   IDS_DEFAULT_AVATAR_NAME_23,
   IDS_DEFAULT_AVATAR_NAME_24,
-  IDS_DEFAULT_AVATAR_NAME_25
+  IDS_DEFAULT_AVATAR_NAME_25,
+  IDS_DEFAULT_AVATAR_NAME_26
 };
 
 typedef std::vector<unsigned char> ImageData;
@@ -395,6 +396,9 @@ const gfx::Image* ProfileInfoCache::GetHighResAvatarOfProfileAtIndex(
   int avatar_index = GetAvatarIconIndexOfProfileAtIndex(index);
   std::string key = profiles::GetDefaultAvatarIconFileNameAtIndex(avatar_index);
 
+  if (!strcmp(key.c_str(), profiles::GetNoHighResAvatarFileName()))
+    return NULL;
+
   base::FilePath user_data_dir;
   PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
   base::FilePath image_path = user_data_dir.