PlzNavigate: AppCache support.

content/browser/appcache/appcache_service_impl.h

Index: content/browser/appcache/appcache_service_impl.h
diff --git a/content/browser/appcache/appcache_service_impl.h b/content/browser/appcache/appcache_service_impl.h
index ea78f6910e9c79c071320a9e4c82c635e33ae039..06ad1428a46ebe5d57a4f80df19a668b794231e4 100644
--- a/content/browser/appcache/appcache_service_impl.h
+++ b/content/browser/appcache/appcache_service_impl.h
@@ -172,6 +172,13 @@ class CONTENT_EXPORT AppCacheServiceImpl
     return (it != backends_.end()) ? it->second : NULL;
   }
 
+  void RegisterBackendForFrame(AppCacheBackendImpl* backend_impl);
+  void UnregisterBackendForFrame(AppCacheBackendImpl* backend_impl);
+  AppCacheBackendImpl* GetBackendForFrame(int id) const {
+    BackendMap::const_iterator it = backends_for_frame_.find(id);
+    return (it != backends_for_frame_.end()) ? it->second : NULL;
+  }
+
   AppCacheStorage* storage() const { return storage_.get(); }
 
   base::WeakPtr<AppCacheServiceImpl> AsWeakPtr() {
@@ -211,6 +218,8 @@ class CONTENT_EXPORT AppCacheServiceImpl
   scoped_refptr<storage::QuotaManagerProxy> quota_manager_proxy_;
   PendingAsyncHelpers pending_helpers_;
   BackendMap backends_;  // One 'backend' per child process.
+  BackendMap backends_for_frame_;  // One 'backend' per frame.
+
   // Context for use during cache updates.
   net::URLRequestContext* request_context_;
   // If true, nothing (not even session-only data) should be deleted on exit.