Flip the true/false result of ScriptState::contextIsValid

Source/core/inspector/InspectorOverlay.cpp

Index: Source/core/inspector/InspectorOverlay.cpp
diff --git a/Source/core/inspector/InspectorOverlay.cpp b/Source/core/inspector/InspectorOverlay.cpp
index da39849c62d1fb3f6932c96dd0c3a0f032bcfb97..00ade51e56dbe7bc38a9003855fe71aade40ca81 100644
--- a/Source/core/inspector/InspectorOverlay.cpp
+++ b/Source/core/inspector/InspectorOverlay.cpp
@@ -745,7 +745,7 @@ Page* InspectorOverlay::overlayPage()
     loader.load(FrameLoadRequest(0, blankURL(), SubstituteData(data, "text/html", "UTF-8", KURL(), ForceSynchronousLoad)));
     v8::Isolate* isolate = toIsolate(frame.get());
     ScriptState* scriptState = ScriptState::forMainWorld(frame.get());
-    ASSERT(!scriptState->contextIsValid());
+    ASSERT(scriptState->contextIsValid());
     ScriptState::Scope scope(scriptState);
     v8::Handle<v8::Object> global = scriptState->context()->Global();
     v8::Handle<v8::Value> overlayHostObj = toV8(m_overlayHost.get(), global, isolate);