Change userid from a uint32_t to a string guid

components/profile_service/profile_app.cc

 // Copyright 2016 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 "components/profile_service/profile_app.h"
 
 #include "base/lazy_instance.h"
 #include "components/leveldb/leveldb_service_impl.h"
 #include "components/profile_service/profile_service_impl.h"
 #include "mojo/shell/public/cpp/connection.h"
 
 namespace profile {
 
 namespace {
 
-base::LazyInstance<std::map<uint32_t, base::FilePath>> g_user_id_to_data_dir =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<std::map<std::string, base::FilePath>>
+    g_user_id_to_data_dir = LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 scoped_ptr<mojo::ShellClient> CreateProfileApp() {
   return make_scoped_ptr(new ProfileApp);
 }
 
 ProfileApp::ProfileApp()
     : lock_table_(new filesystem::LockTable) {
 }
 
 ProfileApp::~ProfileApp() {}
 
 // static
 void ProfileApp::AssociateMojoUserIDWithProfileDir(
-    uint32_t user_id,
+    const std::string& user_id,
     const base::FilePath& profile_data_dir) {
   g_user_id_to_data_dir.Get()[user_id] = profile_data_dir;
 }
 
 void ProfileApp::Initialize(mojo::Connector* connector,
                             const std::string& url,
-                            uint32_t id,
-                            uint32_t user_id) {
+                            const std::string& user_id,
+                            uint32_t id) {
   tracing_.Initialize(connector, url);
   leveldb_service_.reset(new leveldb::LevelDBServiceImpl);
 
   auto it = g_user_id_to_data_dir.Get().find(user_id);
   DCHECK(it != g_user_id_to_data_dir.Get().end());
   profile_data_dir_ = it->second;
 }
 
 bool ProfileApp::AcceptConnection(mojo::Connection* connection) {
   connection->AddInterface<leveldb::LevelDBService>(this);
   connection->AddInterface<ProfileService>(this);
   return true;
 }
 
 void ProfileApp::Create(mojo::Connection* connection,
-                        mojo::InterfaceRequest<ProfileService> request) {
+                        ProfileServiceRequest request) {
   // No, we need one of these per connection.
   new ProfileServiceImpl(connection,
                          std::move(request),
                          profile_data_dir_,
                          lock_table_.get());
 }
 
-void ProfileApp::Create(
-    mojo::Connection* connection,
-    mojo::InterfaceRequest<leveldb::LevelDBService> request) {
+void ProfileApp::Create(mojo::Connection* connection,
+                        leveldb::LevelDBServiceRequest request) {
   leveldb_bindings_.AddBinding(leveldb_service_.get(), std::move(request));
 }
 
 }  // namespace profile