[DevTools] Fix DevTools reload in undocked mode.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 53dfccd6dffaa85ee85a49c9146305cb6e6385c5..9e964d5579c12e8d925f481e380cc23f690779c1 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -1348,6 +1348,12 @@ void Browser::ShowDownload(content::DownloadItem* download) {
 
 WebContents* Browser::OpenURLFromTab(WebContents* source,
                                      const OpenURLParams& params) {
+  if (is_devtools()) {
+    DevToolsWindow* window = DevToolsWindow::AsDevToolsWindow(source);
+    DCHECK(window);
+    return window->OpenURLFromTab(source, params);
+  }
+
   chrome::NavigateParams nav_params(this, params.url, params.transition);
   FillNavigateParamsFromOpenURLParams(&nav_params, params);
   nav_params.source_contents = source;