Let the browser handle external navigations from DevTools.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index be1a15187fc06219c61d91c2cdb837cfbed8d3c1..0d88149e4bf78b579d1f6a3267b30250767f9a3f 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -3038,8 +3038,8 @@ WebNavigationPolicy RenderViewImpl::decidePolicyForNavigation(
     bool send_referrer = false;
 
     // All navigations to WebUI URLs or within WebUI-enabled RenderProcesses
-    // must be handled by the browser process so that the correct bindings and
-    // data sources can be registered.
+    // or from WebUI URLs must be handled by the browser process so that the
+    // correct bindings and data sources can be registered.
     // Similarly, navigations to view-source URLs or within ViewSource mode
     // must be handled by the browser process (except for reloads - those are
     // safe to leave within the renderer).
@@ -3050,6 +3050,7 @@ WebNavigationPolicy RenderViewImpl::decidePolicyForNavigation(
     bool is_initial_navigation = page_id_ == -1;
     bool should_fork = HasWebUIScheme(url) ||
         (cumulative_bindings & BINDINGS_POLICY_WEB_UI) ||
+        HasWebUIScheme(old_url) ||

[Charlie Reis, 2013/03/06 19:24:27]

nit: Please move above previous line, so that the two HasWebUIScheme calls are
near each other.

         url.SchemeIs(chrome::kViewSourceScheme) ||
         (frame->isViewSourceModeEnabled() &&
             type != WebKit::WebNavigationTypeReload);