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..2c7f021102520a44f5b41de7a773c2a8906adfe5 100644
--- a/Source/core/inspector/PageRuntimeAgent.cpp
+++ b/Source/core/inspector/PageRuntimeAgent.cpp
@@ -181,7 +181,12 @@ void PageRuntimeAgent::notifyContextCreated(const String& frameId, ScriptState*
 {
     ASSERT(securityOrigin || isPageContext);
     int executionContextId = injectedScriptManager()->injectedScriptIdFor(scriptState);
-    String name = securityOrigin ? securityOrigin->toRawString() : "";
+    v8::HandleScope handleScope;

[yurys, 2013/05/24 04:58:44]

We try to avoid using v8 API from the agents directly. There are Script*
abstractions for accessing underlying VM.

+    DOMWrapperWorld* world = DOMWrapperWorld::isolatedWorld(scriptState->context());
+    String name = world ? world->isolatedWorldHumanReadableName() : "";
+    if (name.isEmpty() && securityOrigin)
+        name = securityOrigin->toRawString();
+
     m_frontend->executionContextCreated(ExecutionContextDescription::create()
         .setId(executionContextId)
         .setIsPageContext(isPageContext)