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 9338c39e20ad89010d76c53b301a084d10928ff6..b2ece92f27d6a0ec35a4c171cd96af3db3a39bec 100644
--- a/chrome/browser/profiles/profile_info_cache.cc
+++ b/chrome/browser/profiles/profile_info_cache.cc
@@ -86,6 +86,7 @@ const int kDefaultAvatarIconResources[] = {
   IDR_PROFILE_AVATAR_23,
   IDR_PROFILE_AVATAR_24,
   IDR_PROFILE_AVATAR_25,
+  IDR_PROFILE_AVATAR_26,
 };
 
 const size_t kDefaultAvatarIconsCount = arraysize(kDefaultAvatarIconResources);
@@ -93,6 +94,9 @@ const size_t kDefaultAvatarIconsCount = arraysize(kDefaultAvatarIconResources);
 // The first 8 icons are generic.
 const size_t kGenericIconCount = 8;
 
+// The avatar used as a placeholder (grey silhouette).
+const int kPlaceholderAvatarIcon = 26;
+
 // First eight are generic icons, which use IDS_NUMBERED_PROFILE_NAME.
 const int kDefaultNames[] = {
   IDS_DEFAULT_AVATAR_NAME_8,
@@ -112,7 +116,8 @@ 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;
@@ -865,6 +870,15 @@ size_t ProfileInfoCache::GetDefaultAvatarIconCount() {
   return kDefaultAvatarIconsCount;
 }
 
+
+int ProfileInfoCache::GetPlaceholderAvatarIndex() {
+  return kPlaceholderAvatarIcon;
+}
+
+int ProfileInfoCache::GetPlaceholderAvatarIconResourceID() {
+  return IDR_PROFILE_AVATAR_26;
+}
+
 // static
 int ProfileInfoCache::GetDefaultAvatarIconResourceIDAtIndex(size_t index) {
   DCHECK(IsDefaultAvatarIconIndex(index));