Simplify BrowserContext by removing redundant methods.

chrome/browser/profiles/profile.h

 // Copyright (c) 2012 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.
 
 // This class gathers state related to a single user profile.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_H_
 
 #include <string>
@@ skipping 184 matching lines @@
   // level and the per-host zoom levels for this user profile.
   // TODO(wjmaclean): Remove this when HostZoomMap migrates to StoragePartition.
   virtual ChromeZoomLevelPrefs* GetZoomLevelPrefs();
 
   // Retrieves a pointer to the PrefService that manages the preferences
   // for OffTheRecord Profiles.  This PrefService is lazily created the first
   // time that this method is called.
   virtual PrefService* GetOffTheRecordPrefs() = 0;
 
   // Returns the main request context.
-  net::URLRequestContextGetter* GetRequestContext() override = 0;
+  virtual net::URLRequestContextGetter* GetRequestContext() = 0;
 
   // Returns the request context used for extension-related requests.  This
   // is only used for a separate cookie store currently.
   virtual net::URLRequestContextGetter* GetRequestContextForExtensions() = 0;
 
   // Returns the SSLConfigService for this profile.
   virtual net::SSLConfigService* GetSSLConfigService() = 0;
 
   // Return whether 2 profiles are the same. 2 profiles are the same if they
   // represent the same profile. This can happen if there is pointer equality
@@ skipping 157 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(Profile);
 };
 
 // The comparator for profile pointers as key in a map.
 struct ProfileCompare {
   bool operator()(Profile* a, Profile* b) const;
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_H_