Add the ability for DevTools to wrap network transactions.

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
diff --git a/chrome/browser/profiles/profile_io_data.cc b/chrome/browser/profiles/profile_io_data.cc
index ba8b91e3a189298ef1aa73d707ae8cbecf86c5fd..4df0e65c4b448c8f3e68ddbccf9daabafec5268b 100644
--- a/chrome/browser/profiles/profile_io_data.cc
+++ b/chrome/browser/profiles/profile_io_data.cc
@@ -28,6 +28,8 @@
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
+#include "chrome/browser/devtools/devtools_network_controller.h"
+#include "chrome/browser/devtools/devtools_network_transaction_factory.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/extensions/extension_resource_protocols.h"
@@ -743,6 +745,12 @@ ResourceContext::SaltCallback ProfileIOData::GetMediaDeviceIDSalt() const {
   return base::Bind(&MediaDeviceIDSalt::GetSalt, media_device_id_salt_);
 }
 
+void ProfileIOData::SetNetworkState(
+    const std::string& client_id, bool offline) const {
+  DCHECK(network_controller_);
+  network_controller_->SetNetworkState(client_id, offline);
+}
+
 bool ProfileIOData::IsOffTheRecord() const {
   return profile_type() == Profile::INCOGNITO_PROFILE
       || profile_type() == Profile::GUEST_PROFILE;
@@ -895,6 +903,12 @@ ProfileIOData::ResourceContext::GetMediaDeviceIDSalt() {
   return io_data_->GetMediaDeviceIDSalt();
 }
 
+void ProfileIOData::ResourceContext::SetNetworkState(
+    const std::string& client_id,
+    bool offline) {
+  io_data_->SetNetworkState(client_id, offline);
+}
+
 // static
 std::string ProfileIOData::GetSSLSessionCacheShard() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
@@ -1144,28 +1158,44 @@ void ProfileIOData::DestroyResourceContext() {
   resource_context_.reset();
 }
 
-void ProfileIOData::PopulateNetworkSessionParams(
+scoped_ptr<net::HttpCache> ProfileIOData::CreateMainHttpFactory(
     const ProfileParams* profile_params,
-    net::HttpNetworkSession::Params* params) const {
-
+    net::HttpCache::BackendFactory* main_backend) const {
+  net::HttpNetworkSession::Params params;
   ChromeURLRequestContext* context = main_request_context();
 
   IOThread* const io_thread = profile_params->io_thread;
 
-  io_thread->InitializeNetworkSessionParams(params);
-
-  params->host_resolver = context->host_resolver();
-  params->cert_verifier = context->cert_verifier();
-  params->server_bound_cert_service = context->server_bound_cert_service();
-  params->transport_security_state = context->transport_security_state();
-  params->cert_transparency_verifier = context->cert_transparency_verifier();
-  params->proxy_service = context->proxy_service();
-  params->ssl_session_cache_shard = GetSSLSessionCacheShard();
-  params->ssl_config_service = context->ssl_config_service();
-  params->http_auth_handler_factory = context->http_auth_handler_factory();
-  params->network_delegate = network_delegate();
-  params->http_server_properties = context->http_server_properties();
-  params->net_log = context->net_log();
+  io_thread->InitializeNetworkSessionParams(&params);
+
+  params.host_resolver = context->host_resolver();
+  params.cert_verifier = context->cert_verifier();
+  params.server_bound_cert_service = context->server_bound_cert_service();
+  params.transport_security_state = context->transport_security_state();
+  params.cert_transparency_verifier = context->cert_transparency_verifier();
+  params.proxy_service = context->proxy_service();
+  params.ssl_session_cache_shard = GetSSLSessionCacheShard();
+  params.ssl_config_service = context->ssl_config_service();
+  params.http_auth_handler_factory = context->http_auth_handler_factory();
+  params.network_delegate = network_delegate();
+  params.http_server_properties = context->http_server_properties();
+  params.net_log = context->net_log();
+
+  network_controller_.reset(new DevToolsNetworkController());
+
+  net::HttpNetworkSession* session = new net::HttpNetworkSession(params);
+  return scoped_ptr<net::HttpCache>(new net::HttpCache(
+      new DevToolsNetworkTransactionFactory(network_controller_.get(), session),
+      context->net_log(), main_backend));
+}
+
+scoped_ptr<net::HttpCache> ProfileIOData::CreateHttpFactory(
+    net::HttpNetworkSession* shared_session,
+    net::HttpCache::BackendFactory* backend) const {
+  return scoped_ptr<net::HttpCache>(new net::HttpCache(
+      new DevToolsNetworkTransactionFactory(
+          network_controller_.get(), shared_session),
+      shared_session->net_log(), backend));
 }
 
 void ProfileIOData::SetCookieSettingsForTesting(