IsBackgroundPageAllowed 169 apps/shell/browser/shell_extensions_browser_client.cc bool ShellExtensionsBrowserClient::IsBackgroundPageAllowed( IsBackgroundPageAllowed 148 chrome/browser/extensions/chrome_extensions_browser_client.cc bool ChromeExtensionsBrowserClient::IsBackgroundPageAllowed( IsBackgroundPageAllowed 100 extensions/browser/test_extensions_browser_client.cc bool TestExtensionsBrowserClient::IsBackgroundPageAllowed(