AutoFill: Release the cached frame when we receive the frameDestroyed() message
from WebKit.

BUG=48857
TEST=none

Review URL: http://codereview.chromium.org/3173005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@55789 0039d316-1c4b-4281-b951-d872f2087c98
void RenderView::focusAccessibilityObject(
    const WebAccessibilityObject& acc_obj) {
#if defined(OS_WIN)
  if (!accessibility_.get())
    return;

  int acc_obj_id = accessibility_->addOrGetId(acc_obj);

  if (acc_obj_id >= 0)
    Send(new ViewHostMsg_AccessibilityFocusChange(routing_id_, acc_obj_id));

#else  // defined(OS_WIN)
  NOTIMPLEMENTED();
#endif
}

void RenderView::focusAccessibilityObject(
    const WebAccessibilityObject& acc_obj) {
#if defined(OS_WIN)
  if (!accessibility_.get())
    return;

  int acc_obj_id = accessibility_->addOrGetId(acc_obj);

  if (acc_obj_id >= 0)
    Send(new ViewHostMsg_AccessibilityFocusChange(routing_id_, acc_obj_id));

#else  // defined(OS_WIN)
  NOTIMPLEMENTED();
#endif
}
