Extension Settings API: make it so that when leveldb storage areas fail to be

chrome/browser/extensions/settings/settings_test_util.cc

Index: chrome/browser/extensions/settings/settings_test_util.cc
diff --git a/chrome/browser/extensions/settings/settings_test_util.cc b/chrome/browser/extensions/settings/settings_test_util.cc
index 38869ac29e38567fe539da587582f03bb3806414..39d63cd212068d50a93360708359dde9d0c1a60d 100644
--- a/chrome/browser/extensions/settings/settings_test_util.cc
+++ b/chrome/browser/extensions/settings/settings_test_util.cc
@@ -5,6 +5,8 @@
 #include "chrome/browser/extensions/settings/settings_test_util.h"
 
 #include "base/file_path.h"
+#include "chrome/browser/extensions/settings/settings_frontend.h"
+#include "chrome/browser/extensions/settings/settings_storage.h"
 #include "chrome/common/extensions/extension.h"
 
 namespace extensions {
@@ -12,8 +14,7 @@ namespace extensions {
 namespace settings_test_util {
 
 // Intended as a StorageCallback from GetStorage.
-static void AssignStorage(
-    SettingsStorage** dst, SettingsStorage* src) {
+static void AssignStorage(SettingsStorage** dst, SettingsStorage* src) {
   *dst = src;
 }
 
@@ -27,6 +28,8 @@ SettingsStorage* GetStorage(
   return storage;
 }
 
+// MockExtesionService
+
 MockExtensionService::MockExtensionService() {}
 
 MockExtensionService::~MockExtensionService() {}
@@ -73,6 +76,8 @@ void MockExtensionService::AddExtension(
   DCHECK(error.empty());
 }
 
+// MockProfile
+
 MockProfile::MockProfile(const FilePath& file_path)
     : TestingProfile(file_path) {
   event_router_.reset(new ExtensionEventRouter(this));
@@ -94,6 +99,32 @@ ExtensionEventRouter* MockProfile::GetExtensionEventRouter() {
   return event_router_.get();
 }
 
+// DelegatingSettingsStorageFactory
+
+DelegatingSettingsStorageFactory::DelegatingSettingsStorageFactory(
+    SettingsStorageFactory* delegate) : delegate_(delegate) {
+  DCHECK(delegate);
+}
+
+DelegatingSettingsStorageFactory::~DelegatingSettingsStorageFactory() {}
+
+void DelegatingSettingsStorageFactory::Reset(SettingsStorageFactory* delegate) {
+  DCHECK(delegate);
+  delegate_.reset(delegate);
+}
+
+SettingsStorage* DelegatingSettingsStorageFactory::Create(
+    const FilePath& base_path, const std::string& extension_id) {
+  return delegate_->Create(base_path, extension_id);
+}
+
+// NullSettingsStorageFactory
+
+SettingsStorage* NullSettingsStorageFactory::Create(
+    const FilePath& base_path, const std::string& extension_id) {
+  return NULL;
+}
+
 }  // namespace settings_test_util
 
 }  // namespace extensions