Adds ability for newly inserted tabs to appear before other tabs. I'll

wire this up to vertical tabs shortly.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/1687020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@46224 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 0 deletions

diff --git a/chrome/browser/browser.h b/chrome/browser/browser.h
index 65eb214..92cf741 100644
--- a/chrome/browser/browser.h
+++ b/chrome/browser/browser.h
@@ -320,6 +320,12 @@ class Browser : public TabStripModelDelegate,
 
   // Tab adding/showing functions /////////////////////////////////////////////
 
+  // Returns the index to insert a tab at during session restore and startup.
+  // |relative_index| gives the index of the url into the number of tabs that
+  // are going to be opened. For example, if three urls are passed in on the
+  // command line this is invoked three times with the values 0, 1 and 2.
+  int GetIndexForInsertionDuringRestore(int relative_index);
+
   // Adds a new tab at the specified index. |add_types| is a bitmask of the
   // values defined by AddTabTypes; see AddTabTypes for details. If |instance|
   // is not null, its process will be used to render the tab. If
@@ -865,6 +871,14 @@ class Browser : public TabStripModelDelegate,
   NavigationController& GetOrCloneNavigationControllerForDisposition(
        WindowOpenDisposition disp);
 
+  // Sets the insertion policy of the tabstrip based on whether vertical tabs
+  // are enabled.
+  void UpdateTabStripModelInsertionPolicy();
+
+  // Invoked when the use vertical tabs preference changes. Resets the insertion
+  // policy of the tab strip model and notifies the window.
+  void UseVerticalTabsChanged();
+
   // Data members /////////////////////////////////////////////////////////////
 
   NotificationRegistrar registrar_;