Revert 132589 - Revert 132440 - Allow extension APIs to be compiled out.

chrome/browser/extensions/extension_function_registry.cc

Index: chrome/browser/extensions/extension_function_registry.cc
===================================================================
--- chrome/browser/extensions/extension_function_registry.cc	(revision 132590)
+++ chrome/browser/extensions/extension_function_registry.cc	(working copy)
@@ -84,6 +84,8 @@
 }
 
 void ExtensionFunctionRegistry::ResetFunctions() {
+#if defined(ENABLE_EXTENSIONS)
+
   // Register all functions here.
 
   // Windows
@@ -503,6 +505,7 @@
 
   // Generated APIs
   extensions::api::GeneratedFunctionRegistry::RegisterAll(this);
+#endif  // defined(ENABLE_EXTENSIONS)
 }
 
 void ExtensionFunctionRegistry::GetAllNames(std::vector<std::string>* names) {