Fix registerProtocolHandler OS registration on Windows 8

chrome/browser/shell_integration.cc

Index: chrome/browser/shell_integration.cc
diff --git a/chrome/browser/shell_integration.cc b/chrome/browser/shell_integration.cc
index 08a9684792eb3730b4f55d9ee39f401d013fc05a..3c8387e6b5bb833d35543290979a279f88e5d705 100644
--- a/chrome/browser/shell_integration.cc
+++ b/chrome/browser/shell_integration.cc
@@ -97,6 +97,12 @@ CommandLine ShellIntegration::CommandLineArgsForLauncher(
 bool ShellIntegration::SetAsDefaultBrowserInteractive() {
   return false;
 }
+
+// static
+bool ShellIntegration::SetAsDefaultProtocolClientInteractive(
+    const std::string& protocol) {
+  return false;
+}
 #endif
 
 bool ShellIntegration::DefaultWebClientObserver::IsOwnedByWorker() {
@@ -264,5 +270,20 @@ ShellIntegration::DefaultProtocolClientWorker::CheckIsDefault() {
 
 bool ShellIntegration::DefaultProtocolClientWorker::SetAsDefault(
     bool interactive_permitted) {
-  return ShellIntegration::SetAsDefaultProtocolClient(protocol_);
+  bool result = false;
+  switch (ShellIntegration::CanSetAsDefaultProtocolClient()) {
+    case ShellIntegration::SET_DEFAULT_UNATTENDED:
+      result = ShellIntegration::SetAsDefaultProtocolClient(protocol_);
+      break;
+    case ShellIntegration::SET_DEFAULT_INTERACTIVE:
+      if (interactive_permitted) {
+        result = ShellIntegration::SetAsDefaultProtocolClientInteractive(
+            protocol_);
+      }
+      break;
+    default:
+      NOTREACHED();
+  }
+
+  return result;
 }