Move history API out of experimental. Allow extensions to override history page.

chrome/common/page_transition_types.cc

Index: chrome/common/page_transition_types.cc
diff --git a/chrome/common/page_transition_types.cc b/chrome/common/page_transition_types.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9fb49cd2d08812892c823c82ebcec37b35041efc
--- /dev/null
+++ b/chrome/common/page_transition_types.cc
@@ -0,0 +1,22 @@
+// 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.
+
+#include "chrome/common/page_transition_types.h"
+
+const char* PageTransition::CoreTransitionString(Type type) {
+  switch (type & PageTransition::CORE_MASK) {
+    case 0: return "link";
+    case 1: return "typed";
+    case 2: return "auto_bookmark";
+    case 3: return "auto_subframe";
+    case 4: return "manual_subframe";
+    case 5: return "generated";
+    case 6: return "start_page";
+    case 7: return "form_submit";
+    case 8: return "reload";
+    case 9: return "keyword";
+    case 10: return "keyword_generated";
+  }
+  return NULL;
+}