Make IsPopup a const function per brett.

- Make TabContentsDelegate::IsPopup a const function;
- Add a default implementation for IsPopup;
- Update all derived classes;
- Remove the bad const_cast in tab_contents.cc;

BUG=none.
TEST=none. Code quality improvement and expect no changes.

Review URL: http://codereview.chromium.org/3060013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@53696 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 4 deletions

diff --git a/chrome/browser/external_tab_container_win.cc b/chrome/browser/external_tab_container_win.cc
index 3257cdc..86ccefe 100644
--- a/chrome/browser/external_tab_container_win.cc
+++ b/chrome/browser/external_tab_container_win.cc
@@ -427,10 +427,6 @@ void ExternalTabContainer::MoveContents(TabContents* source,
                                         const gfx::Rect& pos) {
 }
 
-bool ExternalTabContainer::IsPopup(TabContents* source) {
-  return false;
-}
-
 void ExternalTabContainer::URLStarredChanged(TabContents* source,
                                              bool starred) {
 }