extensions: tabs: set tab id to -1 for app/devtools windows

chrome/browser/extensions/extension_tab_util.cc

Index: chrome/browser/extensions/extension_tab_util.cc
diff --git a/chrome/browser/extensions/extension_tab_util.cc b/chrome/browser/extensions/extension_tab_util.cc
index 5d4b89b667faac9facefd526cd0de2a974db0499..f9a236afcdbe1b917d9359d8e2d05135a7cad940 100644
--- a/chrome/browser/extensions/extension_tab_util.cc
+++ b/chrome/browser/extensions/extension_tab_util.cc
@@ -315,6 +315,9 @@ int ExtensionTabUtil::GetWindowIdOfTabStripModel(
 }
 
 int ExtensionTabUtil::GetTabId(const WebContents* web_contents) {
+  Browser* browser = chrome::FindBrowserWithWebContents(web_contents);
+  if (browser && browser->is_devtools())
+    return -1;
   return SessionTabHelper::IdForTab(web_contents);
 }