Pass the size to the RenderView on creation.

extensions/browser/guest_view/guest_view_base.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/guest_view/guest_view_base.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 401 matching lines @@
                           "  window.event.preventDefault(); "
                           "});";
     render_view_host->GetMainFrame()->ExecuteJavaScript(
         base::ASCIIToUTF16(script));
   }
   DidStopLoading();
 }
 
 void GuestViewBase::RenderViewReady() {
   GuestReady();
-  content::RenderViewHost* rvh = web_contents()->GetRenderViewHost();
-  if (auto_size_enabled_) {
-    rvh->EnableAutoResize(min_auto_size_, max_auto_size_);
-  } else {
-    rvh->DisableAutoResize(element_size_);
-  }
 }
 
 void GuestViewBase::WebContentsDestroyed() {
   // Let the derived class know that its WebContents is in the process of
   // being destroyed. web_contents() is still valid at this point.
   // TODO(fsamuel): This allows for reentrant code into WebContents during
   // destruction. This could potentially lead to bugs. Perhaps we should get rid
   // of this?
   GuestDestroyed();
 
@@ skipping 91 matching lines @@
 
 // static
 void GuestViewBase::RegisterGuestViewTypes() {
   AppViewGuest::Register();
   ExtensionOptionsGuest::Register();
   MimeHandlerViewGuest::Register();
   WebViewGuest::Register();
 }
 
 }  // namespace extensions