Fix positioning of widgets

content/renderer/browser_plugin/browser_plugin.cc

 // Copyright 2012 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 "content/renderer/browser_plugin/browser_plugin.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 359 matching lines @@
   RenderView::FromWebView(webview)->GetWidget()->convertViewportToWindow(
       &rect_in_css);
   view_rect_ = rect_in_css;
 
   if (!ready_) {
     if (delegate_)
       delegate_->Ready();
     ready_ = true;
   }
 
-  if (delegate_ && (view_rect_.size() != old_view_rect.size()))
+  bool rect_size_changed = view_rect_.size() != old_view_rect.size();
+  if (delegate_ && rect_size_changed)
     delegate_->DidResizeElement(view_rect_.size());
 
   if (!attached())
     return;
 
-  if (old_view_rect.size() == view_rect_.size()) {
+  if ((!delegate_ && rect_size_changed) ||
+      view_rect_.origin() != old_view_rect.origin()) {
     // Let the browser know about the updated view rect.
     BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_UpdateGeometry(
         browser_plugin_instance_id_, view_rect_));
     return;
   }
 }
 
 void BrowserPlugin::updateFocus(bool focused, blink::WebFocusType focus_type) {
   plugin_focused_ = focused;
   UpdateGuestFocusState(focus_type);
@@ skipping 171 matching lines @@
 
 bool BrowserPlugin::HandleMouseLockedInputEvent(
     const blink::WebMouseEvent& event) {
   BrowserPluginManager::Get()->Send(
       new BrowserPluginHostMsg_HandleInputEvent(browser_plugin_instance_id_,
                                                 &event));
   return true;
 }
 
 }  // namespace content