Factor dart_init.cc out of dart_controller.cc

sky/engine/core/frame/LocalFrame.cpp

Index: sky/engine/core/frame/LocalFrame.cpp
diff --git a/sky/engine/core/frame/LocalFrame.cpp b/sky/engine/core/frame/LocalFrame.cpp
index 5f28578dd82b2330979132c09d7a8e898daebb00..237b3e346990339d38e94fed711872a2a3654840 100644
--- a/sky/engine/core/frame/LocalFrame.cpp
+++ b/sky/engine/core/frame/LocalFrame.cpp
@@ -65,7 +65,6 @@ inline LocalFrame::LocalFrame(FrameLoaderClient* client, FrameHost* host)
     : Frame(client, host)
     , m_deprecatedLoader(this)
     , m_mojoLoader(adoptPtr(new MojoLoader(*this)))
-    , m_dart(adoptPtr(new DartController()))
     , m_editor(Editor::create(*this))
     , m_spellChecker(SpellChecker::create(*this))
     , m_selection(FrameSelection::create(this))
@@ -122,10 +121,6 @@ void LocalFrame::detach()
     setView(nullptr);
     willDetachFrameHost();
 
-    // Finish all cleanup work that might require talking to the embedder.
-    // Notify ScriptController that the frame is closing, since its cleanup ends up calling
-    // back to FrameLoaderClient via WindowProxy.
-    dart().ClearForClose();
     // After this, we must no longer talk to the client since this clears
     // its owning reference back to our owning LocalFrame.
     loaderClient()->detachedFromParent();