[Blimp] Adds Blimp EngineSession and ClientSession skeleton

blimp/engine/browser/blimp_url_request_context_getter.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/browser/blimp_url_request_context_getter.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 162 matching lines @@
       mapped_host_resolver->SetRulesFromString(
           command_line.GetSwitchValueASCII(switches::kHostResolverRules));
       host_resolver = mapped_host_resolver.Pass();
     }
 
     // Give |storage_| ownership at the end in case it's |mapped_host_resolver|.
     storage_->set_host_resolver(host_resolver.Pass());
     network_session_params.host_resolver =
         url_request_context_->host_resolver();
 
-    storage_->set_http_transaction_factory(
-        make_scoped_ptr(
-            new net::HttpCache(network_session_params, main_backend))
-            .Pass());
+    storage_->set_http_network_session(
+        make_scoped_ptr(new net::HttpNetworkSession(network_session_params)));
+    storage_->set_http_transaction_factory(make_scoped_ptr(new net::HttpCache(
+        storage_->http_network_session(), main_backend, true)));
 
     scoped_ptr<net::URLRequestJobFactoryImpl> job_factory(
         new net::URLRequestJobFactoryImpl());
     // Keep ProtocolHandlers added in sync with
     // BlimpContentBrowserClient::IsHandledURL().
     InstallProtocolHandlers(job_factory.get(), &protocol_handlers_);
     bool set_protocol = job_factory->SetProtocolHandler(
         url::kDataScheme, make_scoped_ptr(new net::DataProtocolHandler));
     DCHECK(set_protocol);
 
@@ skipping 18 matching lines @@
   return content::BrowserThread::GetMessageLoopProxyForThread(
       content::BrowserThread::IO);
 }
 
 net::HostResolver* BlimpURLRequestContextGetter::host_resolver() {
   return url_request_context_->host_resolver();
 }
 
 }  // namespace engine
 }  // namespace blimp