Support re-reading scope variables in protocol and on backed.

Source/core/inspector/JavaScriptCallFrame.cpp

Index: Source/core/inspector/JavaScriptCallFrame.cpp
diff --git a/Source/core/inspector/JavaScriptCallFrame.cpp b/Source/core/inspector/JavaScriptCallFrame.cpp
index 7abf05913188a307305b98042259d474fdf2597f..43559c9868ccb66a111d7db7f58cf7fad7350e44 100644
--- a/Source/core/inspector/JavaScriptCallFrame.cpp
+++ b/Source/core/inspector/JavaScriptCallFrame.cpp
@@ -149,4 +149,11 @@ v8::Handle<v8::Value> JavaScriptCallFrame::setVariableValue(int scopeNumber, con
     return setVariableValueFunction->Call(callFrame, 3, argv);
 }
 
+void JavaScriptCallFrame::rereadScopes()
+{
+    v8::Handle<v8::Object> callFrame = m_callFrame.newLocal(m_isolate);
+    v8::Handle<v8::Function> rereadScopesFunction = v8::Handle<v8::Function>::Cast(callFrame->Get(v8::String::NewSymbol("rereadScopes")));
+    rereadScopesFunction->Call(callFrame, 0, 0);
+}
+
 } // namespace WebCore