Simplify BrowserContext by removing redundant methods.

chrome/browser/spellchecker/spelling_service_client.cc

Index: chrome/browser/spellchecker/spelling_service_client.cc
diff --git a/chrome/browser/spellchecker/spelling_service_client.cc b/chrome/browser/spellchecker/spelling_service_client.cc
index b8ec824f7f7b17e39a4d8df2a4f604c561f2318c..64899a9c067ad4efdabe2f280fd5a23a2a8cb2d2 100644
--- a/chrome/browser/spellchecker/spelling_service_client.cc
+++ b/chrome/browser/spellchecker/spelling_service_client.cc
@@ -23,6 +23,7 @@
 #include "components/prefs/pref_service.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_context.h"
+#include "content/public/browser/storage_partition.h"
 #include "google_apis/google_api_keys.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
@@ -110,7 +111,9 @@ bool SpellingServiceClient::RequestTextCheck(
   net::URLFetcher* fetcher = CreateURLFetcher(url).release();
   data_use_measurement::DataUseUserData::AttachToFetcher(
       fetcher, data_use_measurement::DataUseUserData::SPELL_CHECKER);
-  fetcher->SetRequestContext(context->GetRequestContext());
+  fetcher->SetRequestContext(
+      content::BrowserContext::GetDefaultStoragePartition(context)->
+          GetURLRequestContext());
   fetcher->SetUploadData("application/json", request);
   fetcher->SetLoadFlags(
       net::LOAD_DO_NOT_SEND_COOKIES | net::LOAD_DO_NOT_SAVE_COOKIES);