Simplify BrowserContext by removing redundant methods.

extensions/browser/content_hash_fetcher.cc

 // Copyright 2014 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 "extensions/browser/content_hash_fetcher.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/histogram.h"
 #include "base/synchronization/lock.h"
 #include "base/task_runner_util.h"
 #include "base/timer/elapsed_timer.h"
 #include "base/version.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/storage_partition.h"
 #include "crypto/sha2.h"
 #include "extensions/browser/computed_hashes.h"
 #include "extensions/browser/content_hash_tree.h"
 #include "extensions/browser/content_verifier_delegate.h"
 #include "extensions/browser/verified_contents.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/file_util.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
@@ skipping 421 matching lines @@
 
   // TODO(asargent) - we should do something here to remember recent attempts
   // to fetch signatures by extension id, and use exponential backoff to avoid
   // hammering the server when we aren't successful in getting them.
   // crbug.com/373397
 
   DCHECK(extension->version());
   GURL url =
       delegate_->GetSignatureFetchUrl(extension->id(), *extension->version());
   ContentHashFetcherJob* job = new ContentHashFetcherJob(
-      context_->GetRequestContext(), delegate_->GetPublicKey(), extension->id(),
+      content::BrowserContext::GetDefaultStoragePartition(context_)->
+          GetURLRequestContext(),
+      delegate_->GetPublicKey(), extension->id(),
       extension->path(), url, force,
       base::Bind(&ContentHashFetcher::JobFinished,
                  weak_ptr_factory_.GetWeakPtr()));
   jobs_.insert(std::make_pair(key, job));
   job->Start();
 }
 
 void ContentHashFetcher::ExtensionLoaded(const Extension* extension) {
   CHECK(extension);
   DoFetch(extension, false);
@@ skipping 19 matching lines @@
 
   for (JobMap::iterator i = jobs_.begin(); i != jobs_.end(); ++i) {
     if (i->second.get() == job) {
       jobs_.erase(i);
       break;
     }
   }
 }
 
 }  // namespace extensions