Add the ability for DevTools to wrap network transactions.

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index 7d2e1826ba0c2309268cfced6a2719be763e9129..0692ab3d1db4337bd33fa833952d5099df02e279 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -443,10 +443,10 @@ void ProfileImplIOData::InitializeInternal(
           lazy_params_->cache_max_size,
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE)
               .get());
-  net::HttpNetworkSession::Params network_session_params;
-  PopulateNetworkSessionParams(profile_params, &network_session_params);
-  net::HttpCache* main_cache = new net::HttpCache(
-      network_session_params, main_backend);
+  InitializeNetworkTransactionFactory(profile_params);
+  net::HttpTransactionFactory* network_layer = network_transaction_factory();
+  net::HttpCache* main_cache = new net::HttpCache(network_layer,
+      network_layer->GetSession()->net_log(), main_backend);

[mmenke, 2014/03/07 19:38:08]

This constructor doesn't initialize QUIC.  You should probably engage with the
QUIC team to ask how best to go about enabling it when using this constructor. 
Main issue is the QuicServerInfoFactoryAdaptor is owned by the cache, but used
by the session (Which is kinda weird).

   main_cache->InitializeInfiniteCache(lazy_params_->infinite_cache_path);
 
 #if defined(OS_ANDROID) || defined(OS_IOS)