Revert of Simplify BrowserContext by removing redundant methods.

content/browser/cache_storage/cache_storage_manager_unittest.cc

Index: content/browser/cache_storage/cache_storage_manager_unittest.cc
diff --git a/content/browser/cache_storage/cache_storage_manager_unittest.cc b/content/browser/cache_storage/cache_storage_manager_unittest.cc
index c4aa214ab0c280ff0aac91e6906ba0b3fb8a8db2..95560c8683974d964d86c41e64c87b83cbe69bb6 100644
--- a/content/browser/cache_storage/cache_storage_manager_unittest.cc
+++ b/content/browser/cache_storage/cache_storage_manager_unittest.cc
@@ -26,7 +26,6 @@
 #include "content/browser/quota/mock_quota_manager_proxy.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/cache_storage_usage_info.h"
-#include "content/public/browser/storage_partition.h"
 #include "content/public/test/mock_special_storage_policy.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ -75,8 +74,7 @@
         "blob", CreateMockBlobProtocolHandler(blob_storage_context->context()));
 
     net::URLRequestContext* url_request_context =
-        BrowserContext::GetDefaultStoragePartition(&browser_context_)->
-              GetURLRequestContext()->GetURLRequestContext();
+        browser_context_.GetRequestContext()->GetURLRequestContext();
 
     url_request_context->set_job_factory(url_request_job_factory_.get());
 
@@ -101,8 +99,7 @@
         quota_manager_proxy_);
 
     cache_manager_->SetBlobParametersForCache(
-        BrowserContext::GetDefaultStoragePartition(&browser_context_)->
-            GetURLRequestContext(),
+        browser_context_.GetRequestContext(),
         blob_storage_context->context()->AsWeakPtr());
   }
 
@@ -339,8 +336,8 @@
   // Temporary directory must be allocated first so as to be destroyed last.
   base::ScopedTempDir temp_dir_;
 
+  TestBrowserContext browser_context_;
   TestBrowserThreadBundle browser_thread_bundle_;
-  TestBrowserContext browser_context_;
   std::unique_ptr<net::URLRequestJobFactoryImpl> url_request_job_factory_;
   storage::BlobStorageContext* blob_storage_context_;