Fix #6004 regression: cannot switch panels with CDT extension in webview

This copes with upstream change in site-per-process. CDT extension should
be loaded in webview guest process and site instance in this use case.

DEPS

@@ -112,7 +112,7 @@ vars = {
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.
   'v8_revision': '5be1b3861c4fe01f7e06403472d8bef7bd6ba465',
-  'nw_src_revision': '3a6ae819417d72c4000f2df3ab4484ae9773005c',
+  'nw_src_revision': '3b233264f3c33bbbb1bf043512b004c10ce0eb1d',
   'nw_v8_revision': 'b5ae645d1883ef16451b677a738cd3a5321cc54d',
   'nw_node_revision': '4052bfe6fa005ec309e48c25b9fa3f30bc82e354',
 

src/browser/nw_extensions_browser_hooks.cc

@@ -214,7 +214,7 @@ bool GuestSwapProcessHook(content::BrowserContext* browser_context, const GURL&
   std::string extension_id = url.host();
   const Extension* extension = registry->enabled_extensions().GetByID(extension_id);
   if (extension && !extensions::ManifestURL::Get(extension, "devtools_page").is_empty())
-    return true;
+    return false;
   return false;
 }
 

src/resources/api_nw_window.js

@@ -785,10 +785,13 @@ function onClose(user_force) {
 }
 
 function get_nw() {
-  appWindowNatives.FixGamePadAPI();
-  var nw0 = try_nw(window).nw;
-  if (nw0)
-    nw0.Window.get();
+  try {
+    appWindowNatives.FixGamePadAPI();
+    var nw0 = try_nw(window).nw;
+    if (nw0)
+      nw0.Window.get();
+  } catch (e) {
+  }
 }
 
 if (bgPage !== window) {