2 files changed, 21 insertions, 1 deletions
diff --git a/webkit/appcache/appcache_interfaces.cc b/webkit/appcache/appcache_interfaces.cc
index a3b6f31..d7941be 100644
--- a/webkit/appcache/appcache_interfaces.cc
+++ b/webkit/appcache/appcache_interfaces.cc
@@ -4,6 +4,9 @@
 
 #include "webkit/appcache/appcache_interfaces.h"
 
+#include <set>
+
+#include "base/lazy_instance.h"
 #include "base/string_util.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request.h"
@@ -13,6 +16,13 @@
 using WebKit::WebApplicationCacheHost;
 using WebKit::WebConsoleMessage;
 
+namespace {
+
+base::LazyInstance<std::set<std::string> >::Leaky g_supported_schemes =
+    LAZY_INSTANCE_INITIALIZER;
+
+}  // namespace
+
 namespace appcache {
 
 const char kHttpScheme[] = "http";
@@ -77,8 +87,16 @@ bool Namespace::IsMatch(const GURL& url) const {
   return StartsWithASCII(url.spec(), namespace_url.spec(), true);
 }
 
+void AddSupportedScheme(const char* scheme) {
+  g_supported_schemes.Get().insert(scheme);
+}
+
 bool IsSchemeSupported(const GURL& url) {
-  bool supported = url.SchemeIs(kHttpScheme) || url.SchemeIs(kHttpsScheme);
+  bool supported = url.SchemeIs(kHttpScheme) || url.SchemeIs(kHttpsScheme) ||
+      (!(g_supported_schemes == NULL) &&
+       g_supported_schemes.Get().find(url.scheme()) !=
+           g_supported_schemes.Get().end());
+
 #ifndef NDEBUG
   // TODO(michaeln): It would be really nice if this could optionally work for
   // file and filesystem urls too to help web developers experiment and test
diff --git a/webkit/appcache/appcache_interfaces.h b/webkit/appcache/appcache_interfaces.h
index b45ee8f..0dfa4c4 100644
--- a/webkit/appcache/appcache_interfaces.h
+++ b/webkit/appcache/appcache_interfaces.h
@@ -171,6 +171,8 @@ extern const char kHttpsScheme[];
 extern const char kHttpGETMethod[];
 extern const char kHttpHEADMethod[];
 
+WEBKIT_STORAGE_EXPORT void AddSupportedScheme(const char* scheme);
+
 bool IsSchemeSupported(const GURL& url);
 bool IsMethodSupported(const std::string& method);
 bool IsSchemeAndMethodSupported(const net::URLRequest* request);