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::OnNotifyRendererViewType(ViewType::Type type) {
  if (view_type_ != ViewType::INVALID) {
    if (type == ViewType::EXTENSION_MOLE ||
        type == ViewType::EXTENSION_TOOLSTRIP) {
      ExtensionProcessBindings::SetViewType(webview(), type);
    }
  }
  view_type_ = type;
}

void RenderView::OnNotifyRendererViewType(ViewType::Type type) {
  if (view_type_ != ViewType::INVALID) {
    if (type == ViewType::EXTENSION_MOLE ||
        type == ViewType::EXTENSION_TOOLSTRIP) {
      ExtensionProcessBindings::SetViewType(webview(), type);
    }
  }
  view_type_ = type;
}
