PlzNavigate: AppCache support.

content/browser/appcache/appcache_service_impl.cc

Index: content/browser/appcache/appcache_service_impl.cc
diff --git a/content/browser/appcache/appcache_service_impl.cc b/content/browser/appcache/appcache_service_impl.cc
index 2978f4993077ccc99260e720f3c1b8c38749d117..2222e86b8477c2cac2692cad7fdbeaa800535551 100644
--- a/content/browser/appcache/appcache_service_impl.cc
+++ b/content/browser/appcache/appcache_service_impl.cc
@@ -25,6 +25,7 @@
 #include "content/browser/appcache/appcache_response.h"
 #include "content/browser/appcache/appcache_service_impl.h"
 #include "content/browser/appcache/appcache_storage_impl.h"
+#include "content/public/common/browser_side_navigation_policy.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
 #include "storage/browser/quota/special_storage_policy.h"
@@ -527,4 +528,20 @@ void AppCacheServiceImpl::UnregisterBackend(
   backends_.erase(backend_impl->process_id());
 }
 
+void AppCacheServiceImpl::RegisterBackendForFrame(
+    AppCacheBackendImpl* backend_impl) {
+  DCHECK(IsBrowserSideNavigationEnabled());
+  DCHECK(backends_for_frame_.find(backend_impl->frame_id()) ==
+         backends_for_frame_.end());
+
+  backends_for_frame_.insert(
+      BackendMap::value_type(backend_impl->frame_id(), backend_impl));
+}
+
+void AppCacheServiceImpl::UnregisterBackendForFrame(
+    AppCacheBackendImpl* backend_impl) {
+  DCHECK(IsBrowserSideNavigationEnabled());
+  backends_for_frame_.erase(backend_impl->frame_id());
+}
+
 }  // namespace content