Improve DEFINE_STATIC_LOCAL()'s handling of Blink GCed objects.

third_party/WebKit/Source/web/InspectorOverlay.cpp

Index: third_party/WebKit/Source/web/InspectorOverlay.cpp
diff --git a/third_party/WebKit/Source/web/InspectorOverlay.cpp b/third_party/WebKit/Source/web/InspectorOverlay.cpp
index cff0af0bfb9c1ac3b43265a717b4637c32736997..7a944723a7a02b4ef0a37991bb3579bc6d65aa34 100644
--- a/third_party/WebKit/Source/web/InspectorOverlay.cpp
+++ b/third_party/WebKit/Source/web/InspectorOverlay.cpp
@@ -468,7 +468,7 @@ Page* InspectorOverlay::overlayPage()
 
     ScriptForbiddenScope::AllowUserAgentScript allowScript;
 
-    DEFINE_STATIC_LOCAL(Persistent<FrameLoaderClient>, dummyFrameLoaderClient, (EmptyFrameLoaderClient::create()));
+    DEFINE_STATIC_LOCAL(FrameLoaderClient, dummyFrameLoaderClient, (EmptyFrameLoaderClient::create()));
     Page::PageClients pageClients;
     fillWithEmptyClients(pageClients);
     DCHECK(!m_overlayChromeClient);
@@ -495,7 +495,7 @@ Page* InspectorOverlay::overlayPage()
     // through some non-composited paint function.
     overlaySettings.setAcceleratedCompositingEnabled(false);
 
-    RawPtr<LocalFrame> frame = LocalFrame::create(dummyFrameLoaderClient.get(), &m_overlayPage->frameHost(), 0);
+    RawPtr<LocalFrame> frame = LocalFrame::create(&dummyFrameLoaderClient, &m_overlayPage->frameHost(), 0);
     frame->setView(FrameView::create(frame.get()));
     frame->init();
     FrameLoader& loader = frame->loader();