sql::MetaTable.next_download_id, DownloadManager::GetNextId()

content/browser/renderer_host/resource_dispatcher_host.cc

Index: content/browser/renderer_host/resource_dispatcher_host.cc
diff --git a/content/browser/renderer_host/resource_dispatcher_host.cc b/content/browser/renderer_host/resource_dispatcher_host.cc
index 24ef6825bfd520b7177f8b5f97cb61a6294aaa40..10c5821d407265e96e3b38e717a9500c0e53a6be 100644
--- a/content/browser/renderer_host/resource_dispatcher_host.cc
+++ b/content/browser/renderer_host/resource_dispatcher_host.cc
@@ -34,7 +34,6 @@
 #include "content/browser/download/save_file_resource_handler.h"
 #include "content/browser/in_process_webkit/webkit_thread.h"
 #include "content/browser/plugin_service.h"
-#include "content/browser/resource_context.h"
 #include "content/browser/renderer_host/async_resource_handler.h"
 #include "content/browser/renderer_host/buffered_resource_handler.h"
 #include "content/browser/renderer_host/cross_site_resource_handler.h"
@@ -50,6 +49,7 @@
 #include "content/browser/renderer_host/resource_queue.h"
 #include "content/browser/renderer_host/resource_request_details.h"
 #include "content/browser/renderer_host/sync_resource_handler.h"
+#include "content/browser/resource_context.h"
 #include "content/browser/ssl/ssl_client_auth_handler.h"
 #include "content/browser/ssl/ssl_manager.h"
 #include "content/browser/worker_host/worker_service.h"
@@ -726,12 +726,28 @@ void ResourceDispatcherHost::BeginDownload(
 
   request_id_--;
 
+  // TODO(benjhayden) next_download_id_thunk can be a field in ResourceContext
+  // when DownloadManager is moved to content.
+  DownloadManager::GetNextIdThunkType* next_download_id_thunk =
+    reinterpret_cast<DownloadManager::GetNextIdThunkType*>(context
+        .GetUserData(reinterpret_cast<void*>(BASE_HASH_NAMESPACE::
+#if defined(COMPILER_GCC)
+            hash<std::string>()
+#elif defined(COMPILER_MSVC)
+            hash_value
+#endif
+            ("next_download_id_thunk"))));
+  CHECK(next_download_id_thunk);
+  CHECK(!next_download_id_thunk->is_null());
+  DownloadId dl_id = next_download_id_thunk->Run();
+
   scoped_refptr<ResourceHandler> handler(
       new DownloadResourceHandler(this,
                                   child_id,
                                   route_id,
                                   request_id_,
                                   url,
+                                  dl_id,
                                   download_file_manager_.get(),
                                   request,
                                   prompt_for_save_location,
@@ -752,7 +768,7 @@ void ResourceDispatcherHost::BeginDownload(
 
   request->set_method("GET");
   request->set_referrer(MaybeStripReferrer(referrer).spec());
-  request->set_context(context.request_context());
+  request->set_context(request_context);
   request->set_load_flags(request->load_flags() |
       net::LOAD_IS_DOWNLOAD);