Implement "open link as user" context menu entry

chrome/browser/profiles/profile_info_cache.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/profiles/profile_info_cache.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/i18n/case_conversion.h"
 #include "base/logging.h"
@@ skipping 304 matching lines @@
 }
 
 base::string16 ProfileInfoCache::GetUserNameOfProfileAtIndex(
     size_t index) const {
   base::string16 user_name;
   GetInfoForProfileAtIndex(index)->GetString(kUserNameKey, &user_name);
   return user_name;
 }
 
 const gfx::Image& ProfileInfoCache::GetAvatarIconOfProfileAtIndex(
-    size_t index) {
+    size_t index) const {
   if (IsUsingGAIAPictureOfProfileAtIndex(index)) {
     const gfx::Image* image = GetGAIAPictureOfProfileAtIndex(index);
     if (image)
       return *image;
   }
 
   // Use the high resolution version of the avatar if it exists.
   if (switches::IsNewAvatarMenu()) {
     const gfx::Image* image = GetHighResAvatarOfProfileAtIndex(index);
     if (image)
@@ skipping 877 matching lines @@
   std::vector<base::FilePath>::const_iterator it;
   for (it = profiles_to_rename.begin(); it != profiles_to_rename.end(); ++it) {
     size_t profile_index = GetIndexOfProfileWithPath(*it);
     SetProfileIsUsingDefaultNameAtIndex(profile_index, true);
     // This will assign a new "Person %d" type name and re-sort the cache.
     SetNameOfProfileAtIndex(profile_index, ChooseNameForNewProfile(
         GetAvatarIconIndexOfProfileAtIndex(profile_index)));
   }
 #endif
 }