Fix registerProtocolHandler implementation on Windows 8 and 10.

chrome/browser/shell_integration_win.cc

Index: chrome/browser/shell_integration_win.cc
diff --git a/chrome/browser/shell_integration_win.cc b/chrome/browser/shell_integration_win.cc
index 9a92a9c438eacc3dd186c19701c4a74d41639d37..46a4055c04823a570c00aac2222567ede886190c 100644
--- a/chrome/browser/shell_integration_win.cc
+++ b/chrome/browser/shell_integration_win.cc
@@ -689,6 +689,28 @@ bool SetAsDefaultProtocolClientUsingIntentPicker(const std::string& protocol) {
   return true;
 }
 
+void SetAsDefaultProtocolClientUsingSystemSettings(
+    const std::string& protocol,
+    const base::Closure& on_finished_callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::FILE);
+
+  base::FilePath chrome_exe;
+  if (!PathService::Get(base::FILE_EXE, &chrome_exe)) {
+    NOTREACHED() << "Error getting app exe path";
+    on_finished_callback.Run();
+    return;
+  }
+
+  // The helper manages its own lifetime.
+  base::string16 wprotocol(base::UTF8ToUTF16(protocol));
+  static const wchar_t* const kProtocols[] = {wprotocol.c_str(), nullptr};
+  OpenSystemSettingsHelper::Begin(kProtocols, on_finished_callback);
+
+  BrowserDistribution* dist = BrowserDistribution::GetDistribution();
+  ShellUtil::ShowMakeChromeDefaultProtocolClientSystemUI(dist, chrome_exe,
+                                                         wprotocol);
+}
+
 }  // namespace win
 
 }  // namespace shell_integration