DevTools: Reenable the DOM storage agent on reattach.

Source/core/inspector/InspectorDOMStorageAgent.cpp

Index: Source/core/inspector/InspectorDOMStorageAgent.cpp
diff --git a/Source/core/inspector/InspectorDOMStorageAgent.cpp b/Source/core/inspector/InspectorDOMStorageAgent.cpp
index 1ab7d2c61b1f3f17df79474c63ccce72ddc0a300..9c607be1441d2e62be1d555b9e92631e8b4f20b9 100644
--- a/Source/core/inspector/InspectorDOMStorageAgent.cpp
+++ b/Source/core/inspector/InspectorDOMStorageAgent.cpp
@@ -89,6 +89,12 @@ void InspectorDOMStorageAgent::clearFrontend()
     disable(0);
 }
 
+void InspectorDOMStorageAgent::restore()
+{
+    if (isEnabled())
+        enable(0);
+}
+
 bool InspectorDOMStorageAgent::isEnabled() const
 {
     return m_state->getBoolean(DOMStorageAgentState::domStorageAgentEnabled);