[chromedriver] Do not identify extension background pages by url scheme.

chrome/test/chromedriver/chrome/devtools_http_client.cc

Index: chrome/test/chromedriver/chrome/devtools_http_client.cc
diff --git a/chrome/test/chromedriver/chrome/devtools_http_client.cc b/chrome/test/chromedriver/chrome/devtools_http_client.cc
index ea1f1ddd76767ebf83bf865495d532be383f2c76..6409e8b8b2e1b1c2afebaf00a9861e9fa095e0cf 100644
--- a/chrome/test/chromedriver/chrome/devtools_http_client.cc
+++ b/chrome/test/chromedriver/chrome/devtools_http_client.cc
@@ -160,9 +160,7 @@ const DeviceMetrics* DevToolsHttpClient::device_metrics() {
 bool DevToolsHttpClient::IsBrowserWindow(const WebViewInfo& view) const {
   return base::ContainsKey(*window_types_, view.type) ||
          (view.type == WebViewInfo::kOther &&
-          (base::StartsWith(view.url, "chrome-extension://",
-                            base::CompareCase::SENSITIVE) ||
-           view.url == "chrome://print/" ||
+          (view.url == "chrome://print/" ||
            view.url == "chrome://media-router/"));
 }