[Cleanup] Const-correct the profile() method for the EasyUnlockService

chrome/browser/chromeos/attestation/platform_verification_flow.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/chromeos/attestation/platform_verification_flow.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 79 matching lines @@
     return user_prefs::UserPrefs::Get(web_contents->GetBrowserContext());
   }
 
   const GURL& GetURL(content::WebContents* web_contents) override {
     const GURL& url = web_contents->GetLastCommittedURL();
     if (!url.is_valid())
       return web_contents->GetVisibleURL();
     return url;
   }
 
-  user_manager::User* GetUser(content::WebContents* web_contents) override {
+  const user_manager::User* GetUser(
+      content::WebContents* web_contents) override {
     return ProfileHelper::Get()->GetUserByProfile(
         Profile::FromBrowserContext(web_contents->GetBrowserContext()));
   }
 
   HostContentSettingsMap* GetContentSettings(
       content::WebContents* web_contents) override {
     return Profile::FromBrowserContext(web_contents->GetBrowserContext())->
         GetHostContentSettingsMap();
   }
 
@@ skipping 168 matching lines @@
       return;
     } else if (consent_response == CONSENT_RESPONSE_ALLOW) {
       content::RecordAction(
           base::UserMetricsAction("PlatformVerificationAccepted"));
       VLOG(1) << "Platform verification accepted by user.";
     }
   }
 
   // At this point all user interaction is complete and we can proceed with the
   // certificate request.
-  user_manager::User* user = delegate_->GetUser(context.web_contents);
+  const user_manager::User* user = delegate_->GetUser(context.web_contents);
   if (!user) {
     ReportError(context.callback, INTERNAL_ERROR);
     LOG(ERROR) << "Profile does not map to a valid user.";
     return;
   }
 
   GetCertificate(context, user->email(), false /* Don't force a new key */);
 }
 
 void PlatformVerificationFlow::GetCertificate(const ChallengeContext& context,
@@ skipping 204 matching lines @@
                                             certificate.length()));
   if (!x509.get() || x509->valid_expiry().is_null()) {
     LOG(WARNING) << "Failed to parse certificate, cannot check expiry.";
     return false;
   }
   return (base::Time::Now() > x509->valid_expiry());
 }
 
 }  // namespace attestation
 }  // namespace chromeos