[DevTools] Narrow down DevToolsNetworkTransaction surface.

chrome/browser/devtools/devtools_network_controller.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 "chrome/browser/devtools/devtools_network_controller.h"
 
 #include "chrome/browser/devtools/devtools_network_conditions.h"
 #include "chrome/browser/devtools/devtools_network_interceptor.h"
-#include "chrome/browser/devtools/devtools_network_transaction.h"
 #include "net/http/http_request_info.h"
 
 DevToolsNetworkController::DevToolsNetworkController()
     : default_interceptor_(new DevToolsNetworkInterceptor()),
       appcache_interceptor_(new DevToolsNetworkInterceptor()) {}
 
 DevToolsNetworkController::~DevToolsNetworkController() {
   DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 base::WeakPtr<DevToolsNetworkInterceptor>
 DevToolsNetworkController::GetInterceptor(
-    DevToolsNetworkTransaction* transaction) {
+    const std::string& client_id) {
   DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(transaction->HasStarted());
-
-  if (!interceptors_.size())
-    return default_interceptor_->GetWeakPtr();
-
-  transaction->ProcessRequest();
-
-  const std::string& client_id = transaction->client_id();
-  if (client_id.empty())
+  if (!interceptors_.size() || client_id.empty())
     return default_interceptor_->GetWeakPtr();
 
   DevToolsNetworkInterceptor* interceptor = interceptors_.get(client_id);
   if (!interceptor)
     return default_interceptor_->GetWeakPtr();
 
   return interceptor->GetWeakPtr();
 }
 
 void DevToolsNetworkController::SetNetworkState(
@@ skipping 30 matching lines @@
     }
   }
 
   bool is_appcache_offline = appcache_interceptor_->conditions()->offline();
   if (is_appcache_offline != has_offline_interceptors) {
     scoped_ptr<DevToolsNetworkConditions> appcache_conditions(
         new DevToolsNetworkConditions(has_offline_interceptors));
     appcache_interceptor_->UpdateConditions(appcache_conditions.Pass());
   }
 }