Implement ResourceQueue, an object that makes it easy to delay starting

chrome/browser/renderer_host/async_resource_handler.cc

Index: chrome/browser/renderer_host/async_resource_handler.cc
diff --git a/chrome/browser/renderer_host/async_resource_handler.cc b/chrome/browser/renderer_host/async_resource_handler.cc
index 91a2bb433825fb9574e48599b64f9cbde09ee90e..7b5e8c26f4d05924c6f29f279613885a850309d2 100644
--- a/chrome/browser/renderer_host/async_resource_handler.cc
+++ b/chrome/browser/renderer_host/async_resource_handler.cc
@@ -8,6 +8,7 @@
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
+#include "chrome/browser/renderer_host/global_request_id.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host_request_info.h"
 #include "chrome/common/render_messages.h"
 #include "net/base/io_buffer.h"
@@ -105,7 +106,7 @@ bool AsyncResourceHandler::OnResponseStarted(int request_id,
   // avoiding the possibility of zooming the old content or of having to layout
   // the new content twice.
   URLRequest* request = rdh_->GetURLRequest(
-      ResourceDispatcherHost::GlobalRequestID(process_id_, request_id));
+      GlobalRequestID(process_id_, request_id));
   ResourceDispatcherHostRequestInfo* info = rdh_->InfoForRequest(request);
   if (info->resource_type() == ResourceType::MAIN_FRAME) {
     std::string host(request->url().host());