DevTools: show extension name in console context switcher

Source/core/inspector/PageRuntimeAgent.cpp

Index: Source/core/inspector/PageRuntimeAgent.cpp
diff --git a/Source/core/inspector/PageRuntimeAgent.cpp b/Source/core/inspector/PageRuntimeAgent.cpp
index 86280ce459d95c0ceba78fc96e8748047b21de7f..aed88cd41b797151c0b929aa9f4319c942e0586f 100644
--- a/Source/core/inspector/PageRuntimeAgent.cpp
+++ b/Source/core/inspector/PageRuntimeAgent.cpp
@@ -181,7 +181,11 @@ void PageRuntimeAgent::notifyContextCreated(const String& frameId, ScriptState*
 {
     ASSERT(securityOrigin || isPageContext);
     int executionContextId = injectedScriptManager()->injectedScriptIdFor(scriptState);
-    String name = securityOrigin ? securityOrigin->toRawString() : "";
+    DOMWrapperWorld* world = scriptState->domWrapperWorld();
+    String name = world ? world->isolatedWorldHumanReadableName() : "";
+    if (name.isEmpty() && securityOrigin)
+        name = securityOrigin->toRawString();
+
     m_frontend->executionContextCreated(ExecutionContextDescription::create()
         .setId(executionContextId)
         .setIsPageContext(isPageContext)