fix: use OOPIF for webview tag (#13869)

* fix: use OOIF for webview tag

* fix: do not call GetNativeView for webview

* fix: OOIPF webview's WebContents is managed by embedder frame

* fix: guest view can not be focused

* fix: clear zoom controller when guest is destroyed

* fix: implement the webview resize event

The webview is no longer a browser plugin with the resize event, use
ResizeObserver instead.

* test: disable failed tests due to OOPIF webview

* fix: embedder can be destroyed earlier than guest

This happens when embedder is manually destroyed.

* fix: don't double attach

* fix: recreate iframe when webview is reattached

* fix: resize event may happen very early

* test: some tests are working after OOPIF webview

* chore: remove unused browser plugin webview code

* fix: get embedder via closure

When the "destroyed" event is emitted, the entry in guestInstances would be
cleared.

* chore: rename browserPluginNode to internalElement

* test: make the visibilityState test more robust

* chore: guestinstance can not work with OOPIF webview

* fix: element could be detached before got response from browser

atom/renderer/api/atom_api_web_frame.h

@@ -9,7 +9,6 @@
 #include <string>
 #include <vector>
 
-#include "atom/renderer/guest_view_container.h"
 #include "native_mate/handle.h"
 #include "native_mate/wrappable.h"
 #include "third_party/WebKit/public/platform/WebCache.h"
@@ -54,11 +53,7 @@ class WebFrame : public mate::Wrappable<WebFrame> {
   v8::Local<v8::Value> RegisterEmbedderCustomElement(
       const base::string16& name,
       v8::Local<v8::Object> options);
-  void RegisterElementResizeCallback(
-      int element_instance_id,
-      const GuestViewContainer::ResizeCallback& callback);
-  void AttachGuest(int element_instance_id);
-  void DetachGuest(int element_instance_id);
+  int GetWebFrameId(v8::Local<v8::Value> content_window);
 
   // Set the provider that will be used by SpellCheckClient for spell check.
   void SetSpellCheckProvider(mate::Arguments* args,