Don't populate URL data in WebDropData when dragging files.

This is considered a potential security issue as well, since it leaks
filesystem paths.

BUG=332579

Review URL: https://codereview.chromium.org/135633002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244538 0039d316-1c4b-4281-b951-d872f2087c98
void OmniboxViewViews::SetUserText(const base::string16& text,
                                   const base::string16& display_text,
                                   bool update_popup) {
  saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
  OmniboxView::SetUserText(text, display_text, update_popup);
}

void OmniboxViewViews::SetUserText(const base::string16& text,
                                   const base::string16& display_text,
                                   bool update_popup) {
  saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
  OmniboxView::SetUserText(text, display_text, update_popup);
}
