Remove support in ProfileIOData for one click sign in which is no longer used.

chrome/browser/signin/signin_header_helper.cc

 // Copyright 2013 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/signin_header_helper.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
@@ skipping 184 matching lines @@
     route_id(0) {}
 
 bool AppendMirrorRequestHeaderIfPossible(
     net::URLRequest* request,
     const GURL& redirect_url,
     ProfileIOData* io_data,
     int child_id,
     int route_id) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
 
-  if (io_data->IsOffTheRecord() ||
-      io_data->google_services_username()->GetValue().empty()) {
+  if (io_data->IsOffTheRecord())
     return false;
-  }
+
+  std::string account_id(io_data->google_services_account_id()->GetValue());
+
+  if (account_id.empty())
+    return false;
 
   // If signin cookies are not allowed, don't add the header.
   if (!ChromeSigninClient::SettingsAllowSigninCookies(
           io_data->GetCookieSettings())) {
     return false;
   }
 
   // Only set the header for Drive and Gaia always, and other Google properties
   // if account consistency is enabled.
   // Vasquette, which is integrated with most Google properties, needs the
@@ skipping 25 matching lines @@
       child_id, route_id, &webview_info);
   // Do not set the x-chrome-connected header on requests from a native signin
   // webview, as identified by an empty extension id which means the webview is
   // embedded in a webui page, otherwise user may end up with a blank page as
   // gaia uses the header to decide whether it returns 204 for certain end
   // points.
   if (is_guest && webview_info.owner_extension_id.empty())
     return false;
 #endif // !OS_ANDROID && !OS_IOS
 
-  std::string account_id(io_data->google_services_account_id()->GetValue());
-
   int profile_mode_mask = PROFILE_MODE_DEFAULT;
   if (io_data->incognito_availibility()->GetValue() ==
           IncognitoModePrefs::DISABLED ||
       IncognitoModePrefs::ArePlatformParentalControlsEnabled()) {
     profile_mode_mask |= PROFILE_MODE_INCOGNITO_DISABLED;
   }
 
   std::string header_value(base::StringPrintf("%s=%s,%s=%s,%s=%s",
       kGaiaIdAttrName, account_id.c_str(),
       kProfileModeAttrName, base::IntToString(profile_mode_mask).c_str(),
@@ skipping 34 matching lines @@
 
   params.child_id = child_id;
   params.route_id = route_id;
   content::BrowserThread::PostTask(
       content::BrowserThread::UI, FROM_HERE,
       base::Bind(ProcessMirrorHeaderUIThread, child_id, route_id, params));
 #endif  // defined(OS_IOS)
 }
 
 } // namespace signin