Cancel client auth requests when not promptable.

chrome/browser/extensions/extension_apitest.h

Index: chrome/browser/extensions/extension_apitest.h
diff --git a/chrome/browser/extensions/extension_apitest.h b/chrome/browser/extensions/extension_apitest.h
index 6717cbb8ba16dd40e4782803bbfa3af6f9066c32..5b83292d1baa571af863fa1ec471ab38a01332d2 100644
--- a/chrome/browser/extensions/extension_apitest.h
+++ b/chrome/browser/extensions/extension_apitest.h
@@ -83,6 +83,10 @@ class ExtensionApiTest : public ExtensionBrowserTest {
   bool RunExtensionTestAllowOldManifestVersion(
       const std::string& extension_name);
 
+  // Same as RunExtensionTest, but with a custom argument.
+  bool RunExtensionTestWithArg(const std::string& extension_name,
+                               const char* custom_arg);
+
   // Same as RunExtensionTest, but loads extension as component.
   bool RunComponentExtensionTest(const std::string& extension_name);