Add new system url request context getter to the blimp engine.

blimp/engine/common/blimp_browser_context.cc

 // Copyright 2015 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 "blimp/engine/common/blimp_browser_context.h"
 
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/files/file_util.h"
 #include "base/nix/xdg_util.h"
@@ skipping 79 matching lines @@
 
 bool BlimpBrowserContext::IsOffTheRecord() const {
   return off_the_record_;
 }
 
 content::DownloadManagerDelegate*
 BlimpBrowserContext::GetDownloadManagerDelegate() {
   return nullptr;
 }
 
+net::URLRequestContextGetter* BlimpBrowserContext::GetSystemRequestContext() {
+  system_context_getter_ = new BlimpSystemURLRequestContextGetter();

[mmenke, 2016/04/06 20:44:56]

if (!system_context_getter_)
  system_context_getter_ = new BlimpSystemURLRequestContextGetter();

URLRequestContexts are pretty heavy weight, so want to make sure we don't have
more than one hanging around at a time.

[Jess, 2016/04/06 21:00:52]

Done.

+  return system_context_getter_.get();
+}
+
 net::URLRequestContextGetter* BlimpBrowserContext::GetRequestContext() {
   return GetDefaultStoragePartition(this)->GetURLRequestContext();
 }
 
 const scoped_refptr<BlimpURLRequestContextGetter>&
 BlimpBrowserContext::CreateRequestContext(
     content::ProtocolHandlerMap* protocol_handlers,
     content::URLRequestInterceptorScopedVector request_interceptors) {
   DCHECK(!resource_context_->url_request_context_getter());
   // net_log_ is owned by BrowserMainParts.
@@ skipping 51 matching lines @@
   return permission_manager_.get();
 }
 
 content::BackgroundSyncController*
 BlimpBrowserContext::GetBackgroundSyncController() {
   return nullptr;
 }
 
 }  // namespace engine
 }  // namespace blimp