New security-related pyauto tests for Chrome on ChromeOS that verify extension permissions.

chrome/browser/automation/testing_automation_provider.cc

Index: chrome/browser/automation/testing_automation_provider.cc
diff --git a/chrome/browser/automation/testing_automation_provider.cc b/chrome/browser/automation/testing_automation_provider.cc
index 67a03aeec79dcde9db5d75c4c5e6334abcbf89b8..2e09c39755faea2ecd2391ac7994e2466ca70869 100644
--- a/chrome/browser/automation/testing_automation_provider.cc
+++ b/chrome/browser/automation/testing_automation_provider.cc
@@ -4034,6 +4034,8 @@ void TestingAutomationProvider::GetExtensionsInfo(
     extension_value->Set("effective_host_permissions",
                          GetHostPermissions(extension, true));
     extension_value->Set("api_permissions", GetAPIPermissions(extension));
+    extension_value->SetBoolean("is_component_extension",
+                                extension->location() == Extension::COMPONENT);
     extensions_values->Append(extension_value);
   }
   return_value->Set("extensions", extensions_values);