Simplify BrowserContext by removing redundant methods.

chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc

Index: chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc
diff --git a/chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc b/chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc
index 15266ce987522443181835c0068bf256bfbbb8fc..42fb70641366b725cffb21d1426dfa3e91e763e5 100644
--- a/chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc
+++ b/chrome/browser/bitmap_fetcher/bitmap_fetcher_service.cc
@@ -11,6 +11,7 @@
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
 #include "chrome/browser/profiles/profile.h"
+#include "content/public/browser/storage_partition.h"
 #include "net/base/load_flags.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
@@ -128,7 +129,8 @@ scoped_ptr<chrome::BitmapFetcher> BitmapFetcherService::CreateFetcher(
       new chrome::BitmapFetcher(url, this));
 
   new_fetcher->Init(
-      context_->GetRequestContext(),
+      content::BrowserContext::GetDefaultStoragePartition(context_)->
+          GetURLRequestContext(),
       std::string(),
       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
       net::LOAD_NORMAL);