Implementation of SigninClient::GetSigninScopedDeviceId

chrome/browser/signin/chrome_signin_client.cc

 // Copyright 2014 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/signin/chrome_signin_client.h"
 
+#include "base/command_line.h"
+#include "base/guid.h"
+#include "base/prefs/pref_service.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/net/chrome_cookie_notification_details.h"
 #include "chrome/browser/signin/local_auth.h"
 #include "chrome/browser/webdata/web_data_service_factory.h"
 #include "chrome/common/chrome_version_info.h"
 #include "components/signin/core/common/profile_management_switches.h"
+#include "components/signin/core/common/signin_pref_names.h"
+#include "components/signin/core/common/signin_switches.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/child_process_host.h"
 #include "url/gurl.h"
 
 #if defined(ENABLE_MANAGED_USERS)
 #include "chrome/browser/supervised_user/supervised_user_constants.h"
 #endif
 
@@ skipping 96 matching lines @@
   if (profile_->IsSupervised()) {
     LOG(ERROR) << "Attempt to revoke supervised user refresh "
                << "token detected, ignoring.";
     return false;
   }
 #endif
   return true;
 }
 
 std::string ChromeSigninClient::GetSigninScopedDeviceId() {
-  // TODO(pavely): crbug/382968. In the future this method will read
-  // SigninScopedDeviceId from prefs, generating new one if it doesn't exist.
-  // For now it returns empty string to maintain existing behavior.
-  return std::string();
+  std::string signin_scoped_device_id =
+      GetPrefs()->GetString(prefs::kGoogleServicesSigninScopedDeviceId);
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableSigninScopedDeviceId) &&
+      signin_scoped_device_id.empty()) {
+    // If device_id doesn't exist then generate new and save in prefs.
+    signin_scoped_device_id = base::GenerateGUID();
+    DCHECK(!signin_scoped_device_id.empty());
+    GetPrefs()->SetString(prefs::kGoogleServicesSigninScopedDeviceId,
+                          signin_scoped_device_id);
+  }
+  return signin_scoped_device_id;
+}
+
+void ChromeSigninClient::ClearSigninScopedDeviceId() {
+  GetPrefs()->ClearPref(prefs::kGoogleServicesSigninScopedDeviceId);
 }
 
 net::URLRequestContextGetter* ChromeSigninClient::GetURLRequestContext() {
   return profile_->GetRequestContext();
 }
 
 bool ChromeSigninClient::ShouldMergeSigninCredentialsIntoCookieJar() {
   // If inline sign in is enabled, but new profile management is not, the user's
   // credentials should be merge into the cookie jar.
   return !switches::IsEnableWebBasedSignin() &&
@@ skipping 56 matching lines @@
 
 void ChromeSigninClient::UnregisterForCookieChangedNotification() {
   // Note that it's allowed to call this method multiple times without an
   // intervening call to |RegisterForCookieChangedNotification()|.
   content::Source<Profile> source(profile_);
   if (!registrar_.IsRegistered(
       this, chrome::NOTIFICATION_COOKIE_CHANGED, source))
     return;
   registrar_.Remove(this, chrome::NOTIFICATION_COOKIE_CHANGED, source);
 }