Simplify BrowserContext by removing redundant methods.

chrome/browser/profiles/off_the_record_profile_impl.h

Index: chrome/browser/profiles/off_the_record_profile_impl.h
diff --git a/chrome/browser/profiles/off_the_record_profile_impl.h b/chrome/browser/profiles/off_the_record_profile_impl.h
index 5c2c4fddd42ea22050a2ae93d71c651ca733c62d..a7a9ac19618d4297f3591bf728eef0cbb8675b03 100644
--- a/chrome/browser/profiles/off_the_record_profile_impl.h
+++ b/chrome/browser/profiles/off_the_record_profile_impl.h
@@ -53,6 +53,7 @@ class OffTheRecordProfileImpl : public Profile {
   PrefService* GetPrefs() override;
   const PrefService* GetPrefs() const override;
   PrefService* GetOffTheRecordPrefs() override;
+  net::URLRequestContextGetter* GetRequestContext() override;
   net::URLRequestContextGetter* GetRequestContextForExtensions() override;
   net::URLRequestContextGetter* CreateRequestContext(
       content::ProtocolHandlerMap* protocol_handlers,
@@ -93,7 +94,6 @@ class OffTheRecordProfileImpl : public Profile {
   scoped_refptr<base::SequencedTaskRunner> GetIOTaskRunner() override;
   bool IsOffTheRecord() const override;
   content::DownloadManagerDelegate* GetDownloadManagerDelegate() override;
-  net::URLRequestContextGetter* GetRequestContext() override;
   net::URLRequestContextGetter* GetMediaRequestContext() override;
   net::URLRequestContextGetter* GetMediaRequestContextForRenderProcess(
       int renderer_child_id) override;