Revert of Simplify BrowserContext by removing redundant methods.

headless/lib/browser/headless_browser_context.cc

 // Copyright 2015 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 "headless/lib/browser/headless_browser_context.h"
 
 #include <memory>
 
 #include "base/path_service.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 75 matching lines @@
 }
 
 base::FilePath HeadlessBrowserContext::GetPath() const {
   return path_;
 }
 
 bool HeadlessBrowserContext::IsOffTheRecord() const {
   return false;
 }
 
+net::URLRequestContextGetter* HeadlessBrowserContext::GetRequestContext() {
+  return GetDefaultStoragePartition(this)->GetURLRequestContext();
+}
+
 net::URLRequestContextGetter* HeadlessBrowserContext::GetMediaRequestContext() {
-  return content::BrowserContext::GetDefaultStoragePartition(this)->
-      GetURLRequestContext();
+  return GetRequestContext();
 }
 
 net::URLRequestContextGetter*
 HeadlessBrowserContext::GetMediaRequestContextForRenderProcess(
     int renderer_child_id) {
-  return content::BrowserContext::GetDefaultStoragePartition(this)->
-      GetURLRequestContext();
+  return GetRequestContext();
 }
 
 net::URLRequestContextGetter*
 HeadlessBrowserContext::GetMediaRequestContextForStoragePartition(
     const base::FilePath& partition_path,
     bool in_memory) {
-  return content::BrowserContext::GetDefaultStoragePartition(this)->
-      GetURLRequestContext();
+  return GetRequestContext();
 }
 
 content::ResourceContext* HeadlessBrowserContext::GetResourceContext() {
   return resource_context_.get();
 }
 
 content::DownloadManagerDelegate*
 HeadlessBrowserContext::GetDownloadManagerDelegate() {
   return nullptr;
 }
@@ skipping 51 matching lines @@
     content::URLRequestInterceptorScopedVector request_interceptors) {
   return nullptr;
 }
 
 void HeadlessBrowserContext::SetOptionsForTesting(
     const HeadlessBrowser::Options& options) {
   options_ = options;
 }
 
 }  // namespace headless