No pointer captured when the pointer lock is applied

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2229 matching lines @@
 }
 
 void WebViewImpl::setCursorVisibilityState(bool isVisible) {
   if (m_page)
     m_page->setIsCursorVisible(isVisible);
 }
 
 void WebViewImpl::mouseCaptureLost() {
   TRACE_EVENT_ASYNC_END0("input", "capturing mouse", this);
   m_mouseCaptureNode = nullptr;
+  LocalFrame* focusedFrame = focusedLocalFrameInWidget();

[Navid Zolghadr, 2017/04/10 17:16:14]

Please make sure scheib@ knows about this change in case he knows other places
that we are missing for this. Maybe have the behavior in different cases
documented in a one pager document in case he has any questions regarding this.

+  if (focusedFrame)
+    focusedFrame->eventHandler().releasePointerCapture();
 }
 
 void WebViewImpl::setFocus(bool enable) {
   m_page->focusController().setFocused(enable);
   if (enable) {
     m_page->focusController().setActive(true);
     LocalFrame* focusedFrame = m_page->focusController().focusedFrame();
     if (focusedFrame) {
       Element* element = focusedFrame->document()->focusedElement();
       if (element &&
@@ skipping 1918 matching lines @@
   if (focusedFrame->localFrameRoot() != mainFrameImpl()->frame())
     return nullptr;
   return focusedFrame;
 }
 
 LocalFrame* WebViewImpl::focusedLocalFrameAvailableForIme() const {
   return m_imeAcceptEvents ? focusedLocalFrameInWidget() : nullptr;
 }
 
 }  // namespace blink