Cleanup: Remove unused variables in chrome/ found by Scythe.

chrome/browser/ui/app_list/speech_auth_helper.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/ui/app_list/speech_auth_helper.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/time/clock.h"
-#include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace app_list {
 
 static const char* kAuthScope =
     "https://www.googleapis.com/auth/webhistory";
 static const int kMinTokenRefreshDelaySeconds = 300;  // 5 minutes
 
 
 SpeechAuthHelper::SpeechAuthHelper(Profile* profile, base::Clock* clock)
     : OAuth2TokenService::Consumer(kAuthScope),
-      profile_(profile),
       clock_(clock),
       token_service_(ProfileOAuth2TokenServiceFactory::GetForProfile(profile)),
       weak_factory_(this) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   // If token_service_ is NULL, we can't do anything. This might be NULL if the
   // profile is a guest user.
   if (!token_service_)
     return;
 
@@ skipping 69 matching lines @@
   // guaranteed to be valid at this point.
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   OAuth2TokenService::ScopeSet scopes;
   scopes.insert(kAuthScope);
   auth_token_request_ = token_service_->StartRequest(
       authenticated_account_id_,
       scopes,
       this);
 }
 
-std::string SpeechAuthHelper::GetToken() {
+std::string SpeechAuthHelper::GetToken() const {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   return auth_token_;
 }
 
-std::string SpeechAuthHelper::GetScope() {
+std::string SpeechAuthHelper::GetScope() const {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   return kAuthScope;
 }
 
 }  // namespace app_list