[Mac] Re-enable pinned tabs; add support for mini-tabs and phantom tabs.

chrome/browser/defaults.cc

Index: chrome/browser/defaults.cc
diff --git a/chrome/browser/defaults.cc b/chrome/browser/defaults.cc
index b9ecf0a77a5cc42c7fe3293f4909bfa3f92eaa15..a76ebbf00cc9a234d2b8af41f61ac4890aff6bb5 100644
--- a/chrome/browser/defaults.cc
+++ b/chrome/browser/defaults.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -70,11 +70,8 @@ const bool kShowOtherBrowsersInAboutMemory = true;
 
 #if defined(OS_MACOSX)
 const bool kBrowserAliveWithNoWindows = true;
-// When this gets enabled on Mac, remove this default.
-const bool kEnablePinnedTabs = false;
 #else
 const bool kBrowserAliveWithNoWindows = false;
-const bool kEnablePinnedTabs = true;
 #endif
 
 }  // namespace browser_defaults