PPAPI: Refactor renderer side of browser host creation

content/renderer/pepper/pepper_file_chooser_host.cc

Index: content/renderer/pepper/pepper_file_chooser_host.cc
diff --git a/content/renderer/pepper/pepper_file_chooser_host.cc b/content/renderer/pepper/pepper_file_chooser_host.cc
index 63cd7a6e65d4b7343995381487fe4b951cea7722..4ed77a2651c1ec5a58ac18d33d4be4a64b1aae60 100644
--- a/content/renderer/pepper/pepper_file_chooser_host.cc
+++ b/content/renderer/pepper/pepper_file_chooser_host.cc
@@ -166,19 +166,22 @@ int32_t PepperFileChooserHost::OnShow(
 void PepperFileChooserHost::DidCreateResourceHosts(
     const std::vector<base::FilePath>& file_paths,
     const std::vector<std::string>& display_names,
-    const std::vector<int>& browser_ids) {
-  DCHECK(file_paths.size() == display_names.size());
-  DCHECK(file_paths.size() == browser_ids.size());
+    const ppapi::proxy::CompletedBrowserResourceHosts& browser_hosts) {
+  DCHECK_EQ(file_paths.size(), display_names.size());
+  DCHECK_EQ(file_paths.size(), browser_hosts.host_ids.size());
 
   std::vector<ppapi::FileRefCreateInfo> chosen_files;
-  for (size_t i = 0; i < browser_ids.size(); ++i) {
+  for (size_t i = 0; i < browser_hosts.host_ids.size(); ++i) {
     PepperFileRefRendererHost* renderer_host = new PepperFileRefRendererHost(
         renderer_ppapi_host_, pp_instance(), 0, file_paths[i]);
     int renderer_id =
         renderer_ppapi_host_->GetPpapiHost()->AddPendingResourceHost(
             scoped_ptr<ppapi::host::ResourceHost>(renderer_host));
     ppapi::FileRefCreateInfo info = ppapi::MakeExternalFileRefCreateInfo(
-        file_paths[i], display_names[i], browser_ids[i], renderer_id);
+        file_paths[i],
+        display_names[i],
+        browser_hosts.host_ids[i],
+        renderer_id);
     chosen_files.push_back(info);
   }