Factor out the test web contents from the WebContents unit test so that it ca...

chrome/browser/tab_contents/site_instance.cc

 // Copyright (c) 2006-2008 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/tab_contents/site_instance.h"
 
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 #include "net/base/registry_controlled_domain.h"
 
 SiteInstance::~SiteInstance() {
@@ skipping 10 matching lines @@
     process = RenderProcessHost::FromID(process_host_id_);
 
   // Create a new process if ours went away or was reused.
   if (!process) {
     // See if we should reuse an old process
     if (RenderProcessHost::ShouldTryToUseExistingProcessHost())
       process = RenderProcessHost::GetExistingProcessHost(
           browsing_instance_->profile());
 
     // Otherwise (or if that fails), create a new one.
-    if (!process)
-      process = new BrowserRenderProcessHost(browsing_instance_->profile());
+    if (!process) {
+      if (render_process_host_factory_) {
+        process = render_process_host_factory_->CreateRenderProcessHost(
+            browsing_instance_->profile());
+      } else {
+        process = new BrowserRenderProcessHost(browsing_instance_->profile());
+      }
+    }
 
     // Update our host ID, so all pages in this SiteInstance will use
     // the correct process.
     process_host_id_ = process->host_id();
 
     // Make sure the process starts at the right max_page_id
     process->UpdateMaxPageID(max_page_id_);
   }
   DCHECK(process);
 
@@ skipping 94 matching lines @@
   }
 
   // If the schemes differ, they aren't part of the same site.
   if (url1.scheme() != url2.scheme()) {
     return false;
   }
 
   return net::RegistryControlledDomainService::SameDomainOrHost(url1, url2);
 }