Mojo-ifying chrome://version.

components/version_ui/version_handler_helper.h

Index: components/version_ui/version_handler_helper.h
diff --git a/components/version_ui/version_handler_helper.h b/components/version_ui/version_handler_helper.h
index fbf57e79a8809c0107c8f4153d7d44b8a2548812..d373cd2055a77fb354ac93a1b1a9fb19752b36f5 100644
--- a/components/version_ui/version_handler_helper.h
+++ b/components/version_ui/version_handler_helper.h
@@ -5,6 +5,8 @@
 #ifndef COMPONENTS_VERSION_UI_VERSION_HANDLER_HELPER_H_
 #define COMPONENTS_VERSION_UI_VERSION_HANDLER_HELPER_H_
 
+#include <vector>
+
 #include "base/memory/scoped_ptr.h"
 
 namespace base {
@@ -13,8 +15,12 @@ class Value;
 
 namespace version_ui {
 
+std::vector<std::string> GetVariations();
+
+#if defined(OS_IOS)
 // Returns the list of variations to be displayed on the chrome:://version page.
 scoped_ptr<base::Value> GetVariationsList();
+#endif
 
 }  // namespace version_ui